(SCIENTISTS.) KELVIN, WILLIAM THOMPSON; BARON. Autograph Letter Signed, "Kelvin," to Henri Becquerel, with a small ink drawing.

Conditions of Sale

The property described in this catalogue, as amended by any posted notices or oral announcements during the sale, will be sold by Swann Galleries, Inc. (Swann) as agent for various owners (the Consignors). These CONDITIONS OF SALE, and the LIMITED WARRANTY and ADVICE TO PROSPECTIVE BIDDERS set forth elsewhere in the catalogue are the complete and only terms and conditions on which all property is offered for sale. By bidding at auction (whether present in person or by agent, by written or telephone bid, or by any other means) the buyer agrees to be bound by these Conditions of Sale.

1. THE AUTHENTICITY OF PROPERTY LISTED IN THIS CATALOGUE IS WARRANTED TO THE EXTENT STATED IN THE "LIMITED WARRANTY" EXCEPT AS PROVIDED THEREIN. ALL PROPERTY IS SOLD "AS IS" AND NEITHER SWANN NOR THE CONSIGNOR MAKES ANY WARRANTIES OR REPRESENTATIONS OF ANY KIND OR NATURE WITH RESPECT TO THE PROPERTY OR ITS VALUE, AND IN NO EVENT SHALL THEY BE RESPONSIBLE FOR CORRECTNESS OF DESCRIPTION, GENUINENESS, ATTRIBUTION, PROVENANCE, AUTHENTICITY, AUTHORSHIP, COMPLETENESS, CONDITION OF THE PROPERTY OR ESTIMATE OF VALUE. NO STATEMENT (ORAL OR WRITTEN) IN THE CATALOGUE, AT THE SALE, OR ELSEWHERE SHALL BE DEEMED SUCH A WARRANTY OR REPRESENTATION, OR ANY ASSUMPTION OF RESPONSIBILITY.

2. All bids are to be per lot as numbered in the catalogue.

3. NEITHER SWANN NOR THE CONSIGNOR MAKES ANY REPRESENTATION THAT THE PURCHASER OF MANUSCRIPT MATERIAL, PHOTOGRAPHS, PRINTS, OR WORKS OF ART WILL ACQUIRE ANY COPYRIGHT OR REPRODUCTION RIGHTS THERETO.

4. Swann reserves the absolute right (a) to withdraw any property at any time before its actual final sale, including during the bidding, and (b) to refuse any bid from any bidder. The auctioneer is the sole judge as to the amount to be advanced by each succeeding bid.

5. Any right of the purchaser under this agreement or under the law shall not be assignable and shall be enforceable only by the original purchaser and not by any subsequent owner or any person who shall subsequently acquire any interest. No purchaser shall be entitled to any remedy, relief or damages beyond return of the property, rescission of the sale and refund of the purchase price; and without limitation, no purchaser shall be entitled to damages of any kind.

6. The highest bidder acknowledged by the auctioneer shall be the purchaser. In the event of any dispute between bidders, the auctioneer shall have the absolute discretion either to determine the successful bidder or to re-offer and resell the lot in dispute. If any dispute arises after the sale, Swann's sales records shall be conclusive as to the purchaser, amount of highest bid, and in all other respects.

7. The purchase price paid by a purchaser shall be the sum of the final bid and a buyer's premium of 27% of the hammer price up to and including $100,000; 22% of the portion of the hammer price above $100,000 up to and including $1,000,000; and 12% of the portion of the hammer price above $1,000,000 ("the Buyer's Premium"), plus all applicable sales tax. An additional buyer's premium may be charged on any purchase made through a live online auction as posted by Swann in accordance with such live online auction. For Invaluable.com and Liveauctioneers.com, the additional buyer's premium is 5%.

8. On the fall of the auctioneer's hammer, title to the offered lot or article will pass to the highest acknowledged bidder, who thereupon (a) immediately assumes full risk and responsibility therefor, (b) will immediately sign a confirmation of the purchase therefor, setting forth his name and address, and (c) will immediately pay the full purchase price therefor. If the foregoing conditions or any other applicable conditions herein are not complied with, in addition to other remedies available to Swann and the Consignor by law (including without limitation the right to hold the purchaser liable for the bid price), Swann, at its option, may either (a) cancel the sale, retaining as liquidated damages all payments made by the purchaser, or (b) resell the property, either publicly or privately, for the account and risk of the purchaser, and in such event the purchaser shall be liable for the payment of all deficiencies plus all costs, including warehousing, the expenses of both sales, and Swann's commission at its regular rates and all other charges due hereunder. Swann may also impose late charges of 1.5% per month (or the highest rate allowed under applicable law, whichever is lower) on any amounts unpaid.

9. All property shall be removed from Swann by the purchaser at his expense no later than five (5) days following its sale, and if not so removed may, at Swann's option, be sent by Swann to a public warehouse at the account, risk and expense of the purchaser. Whether sent to a warehouse or stored by Swann, the purchaser shall be liable for all actual expenses incurred plus a storage charge of 5% of the purchase price.

10. Except as noted in this paragraph, all lots in this sale are offered for the account of a third party, without any interest (direct or indirect) of the auctioneer or Swann. Where Swann or an affiliate of Swann is the sole or partial owner of the property it is noted by the symbol l next to the description of that lot. Under no circumstances will the Consignor receive any rebate commission. Under no circumstances may the Consignor bid upon or buy back his property.

11. Except as may be otherwise expressly provided herein, any and all claims of a purchaser shall be deemed to be waived and without validity unless delivered in writing by registered mail return receipt requested to Swann within thirty (30) days of the date of sale.

12. The rights and obligations of the parties shall be governed by the laws of the State of New York. All bidders and the purchaser submit to the personal jurisdiction of the New York State courts and their rules and procedures in the event of any dispute.

13. No waiver or alteration of any of these Conditions of Sale, the Advice to Prospective Bidders, the Limited Warranty, the estimates, or any other matter in this catalogue or any other matter whatever (whether made by the auctioneer, or Consignor, or any representative of Swann) shall be effective unless it is in writing and signed by a representative of Swann.

14. THE "LIMITED WARRANTY" APPEARING BELOW AND THE "ADVICE TO PROSPECTIVE BIDDERS" APPEARING OVERLEAF FORM PART OF THESE CONDITIONS OF SALE.


LIMITED WARRANTY

We warrant the authenticity and condition of each lot catalogued herein on the terms and conditions set forth below.

1. Unless otherwise indicated in the respective catalogue descriptions (which are subject to amendment by oral or written notices or announcements made by Swann prior to sale), we warrant for a period of three (3) years from the date of sale the authenticity of each lot catalogued herein. (Please note Paragraphs 3 and 5 below.)

2. Except as noted above, or unless otherwise indicated in the respective catalogue description, we warrant for a period of thirty (30) days from the date of sale to the original buyer of record, that each book or manuscript is complete in text and illustration and generally is in such physical condition as may reasonably be expected considering the age and provenance. This warranty does not cover damages to binding, stains or foxing, wormholes, short leaves of text or plates or any defect not affecting the completeness of the text. Moreover, this warranty does not cover the lack of inserted advertisements, blank leaves, cancels or subsequently published volumes.

3. Serial publications, books in original parts, extra-illustrated books, made up "albums" and lots described as "sold as is," "sold not subject to return," "not collated," "collection of " or "group of," and any lot containing more than three (3) items, are sold as is and therefore not covered by these warranties.

4. The benefits of these warranties are not assignable and are applicable only to the original buyer of the lot, and are conditioned on the buyer returning the work in the same condition as at time of sale and in the time period specified.

5. (a) The buyer's sole remedy under these warranties shall be the rescission of the sale and refund of the original purchase price paid for the item, and this remedy shall be exclusive and in lieu of any other remedy which might otherwise be available to the buyer as a matter of law.

(b) In the event that a buyer claims that an item is not authentic, Swann shall have no obligation to rescind the sale unless the buyer has obtained, at the buyer's expense, the opinion of two recognized experts in the field, who are mutually agreeable to Swann and the buyer, that a lot or portion thereof is not authentic.


ADVICE TO PROSPECTIVE BIDDERS

1. ALL PROPERTY IS SOLD SUBJECT TO THIS ADVICE, THE CONDITIONS OF SALE, AND TERMS OF WARRANTY PRINTED IN THE CATALOGUE.

2. INSPECTION OF PROPERTY. Prospective bidders or their agents should inspect property prior to the auction. Swann staff are available to advise prospective bidders at all pre-sale exhibitions and by appointment.

3. BUYER'S PREMIUM. The purchase price payable on any lot purchased will be the total of the final bid plus the Buyer's Premium as defined in paragraph 7 of the Conditions of Sale, plus all applicable sales taxes.

4. SALES TAX. All items purchased are subject to payment of the New York City and State sales tax of 8.875% on the total purchase price (final bid plus the Buyer's Premium as defined in paragraph 7 of the Conditions of Sale) unless the purchaser presents proof of exemption therefrom. An exempt purchaser must provide a properly completed New York State Resale Certificate (Form ST-120) evidencing possession of a valid New York State Resale or, for non-New York State businesses, the equivalent resale authorization from another locale. Purchases will not be released unless all sales tax requirements are satisfied. Purchases shipped outside of New York State are not subject to sales tax.

5. BIDDING INCREMENTS. $10 up to $150; then $25 to $500; $50 to $1,000; $100 to $2,000; $200 to $6,000; $500 to $10,000; $1,000 to $20,000; $2,000 to $50,000; and approximately 10% of the current bid thereafter. However, the auctioneer may modify the increments at any time.

6. RESERVES. All lots are subject to a reserve, which is the confidential minimum price agreed to with the seller below which the lot will not be sold. The reserve will never be higher than the low pre-sale estimate, and will never be lower than half the low estimate. Swann may implement such reserve by opening the bidding on behalf of the seller and may bid up to the amount of the reserve by placing successive or consecutive bids for a lot in response to other bidders.

7. ESTIMATES. The estimates provided are intended as a guide to bidding. The figures are educated guesses, based on recent values. A bid between the listed figures would, in our opinion, have a chance of success (at the time the catalogue was prepared). The estimates are exclusive of the buyer's premium, and may be revised at any time prior to the auction.

8. BIDDING. All persons attending the auction must obtain a bidding number prior to bidding. If bids cannot be made in person or by an agent, they may be made by mail, fax, e-mail, or telephone and such bids will be executed without charge.

9. ABSENTEE BIDS will be executed by Swann on the bidder's behalf in competition with other absentee bids and bidding in the room. Every effort will be made to carry out the bidder's instructions, but Swann shall in no event be responsible for failing correctly to carry out instructions, and Swann reserves the right to decline to undertake such bids. Bids by mail should be made in U.S. dollars on the bid sheet found at the end of the catalogue and in accordance with the instructions on the bid sheet.

10. REMOVAL OF PROPERTY. All lots purchased shall be removed at the purchaser's risk and expense by the end of the fifth business day following the sale. Purchases not so removed will be treated as set forth in paragraph 9 of the Conditions of Sale.

11. SHIPMENT. Upon request, Swann will facilitate the shipping of purchases to out-of-town buyers at an additional charge for packing, postage and insurance, but will not be responsible for any loss, damage or delay resulting from the packing, handling and shipping thereof. Unless specific instructions are received, Swann is the sole judge of the method to be used for shipment.

12. PRICES REALIZED. A list of prices realized is published on our website www.swanngalleries.com at the conclusion of the sale. The Prices Realized is also available at Swann and will be mailed upon request.

13. CREDIT. Bidders whose credit is unknown to Swann should submit acceptable credit references or make prior arrangements for payment, failing which purchases will not be released until funds have cleared. Mail bidders should submit references or a deposit of 25% of their maximum bid. If successful, the deposit will be applied to the purchase; if unsuccessful, the deposit will be returned.

14. LOTS NOT RETURNABLE. Paragraph 3 of the Limited Warranty describes lots which are sold as is and not returnable. Books, manuscripts, prints, drawings, photographs, signatures, or any other property offered in a lot comprising more than 3 items, whether or not such items are individually named, constitute "Grouped Lots." Such "Grouped Lots" are not subject to return for any reason.

Buyer's Premium

Buyer's Premium is 27% of the hammer price up to and including $100,000; 22% of the portion of the hammer price above $100,000 up to and including $1,000,000; and 12% of the portion of the hammer price above $1,000,000. An additional buyer's premium may be charged on any purchase made through a live online auction as posted by Swann in accordance with such live online auction. For Invaluable.com and Liveauctioneers.com, the additional buyer's premium is 5%.

Condition Statement

Available upon request.

Payment Information

Payment must be made by cash, check, money order or bank transfer. Purchases paid using personal checks may be held until payment has cleared. Non-US purchasers must pay using a US-dollar denominated check drawn on a US bank or by bank transfer. Payment may also be made by Visa or Mastercard, with a 3% processing fee. Swann does not accept Amex or PayPal.

Shipping Information

Upon request, Swann will facilitate the shipping of purchases to out-of-town buyers at an additional charge for packing, shipping and insurance, but will not be responsible for any loss, damage or delay resulting from the packing, handling and shipping thereof. Unless specific instructions are received, Swann is the sole judge of the method to be used for shipment. Packing and shipping costs will be noted on the invoice mailed to successful bidders after the sale, and are based on the actual costs involved. Be advised that a full commercial invoice must accompany any purchase shipped outside the US.

Taxes on your purchase

SALES TAX. All items purchased are subject to payment of the New York City and State sales tax of 8.875% on the total purchase price (final bid plus the Buyer's Premium as defined in paragraph 7 of the Conditions of Sale) unless the purchaser presents proof of exemption therefrom. An exempt purchaser must provide a properly completed New York State Resale Certificate (Form ST-120) evidencing possession of a valid New York State Resale or, for non-New York State businesses, the equivalent resale authorization from another locale. Purchases shipped outside of New York State may be subject to sales tax imposed by another state, and any such sales taxes will also be due and payable unless proper proof of exemption therefrom is provided. Purchases will not be released unless all sales tax requirements are satisfied.