~ .------=------Mrs Leo ilard 2380 T rrey Pines Road La J la, 92038 DARTMOUTH COLLEGE Department of Psychology HANOVER, NEW HAMPSHIRE

Dear Mrs Szilard

I would greatly appreciate a reprint of your husband's article entitled: On the decrease of entropy in a thermmdynamic system by the 1nterventian of jnte11igent beings which appeared in Behavioral Science 1964 9

3010.310 Thank you very much. Victor E. McGee, PhD Sincerelyyours,1 \ _ R.. ·1 c_/: /Ui\ ulc-. '(, \, ~ ~.j . pY..t. \!!~ '~" ~ ~· r7i~ ~ {I

[U.:> .POSTA~

!1/.M ' J -L() c;):JjiJ ~ 9~. ~~ 1ol <).Jf !lEPRlNT REQUEST"

Dear Ill~ , ~4~; ~~ ~ Would you 'Please send a repr Ln of your· iP 1 Qpesti n.g

a rticle OM 'fL. tAo . s t...+..JL b ~~ '--u g ~ - . &;r~~~ ~~~~~~~ · ~ appeari g in Ab. ~c::.l. . , /161, 9, (1 · ~ 1 - 31 b

Thank you POST CARD

The Addfl~sr. to be written on this 5ide. SEVER LLS HOSPITAL, COLCHESTER. ESSEX.

Do you have a spare copy of your interesting Paper?

With very many thanks. Yours sincerely, ~~. /)~ P 21/0/ .SKY ~ . DEPARTMENT OF EPIDEMIOLOGY HARVARD SCHOOL OF PUBLIC HEALTH ONE SHATTUCK STREET BOSTON, MASSAC HUSETTS 0 2 115

l would g reatly appreciate rece1vmg a reprintS of your,. article5 entitled ''()..~ ~/4r;., " · · ~~ :;!;;~~ · 1 t- ~vry~ J ~ . which appeared in . ~~ , /1&1,../fJ~ l/. (j,,S, /9!iJ (THIS Sl DE OF CARD IS FOR ADDRESS) dJI ~ aJ -~ ~~~ c/) (.~ af~a~7d~ ~~ t!h -t:h ~ ~~/;!~~a ~ ~--- .b?J ~ ~ ~ ,:.:tz_~ 'd ~ . ~ .5c~ J Ud CJ, ~ 30/ J 17G1. ~r (07 ~~~~:/:fc.-:, n:f/~J D~heF~ u . .,;~~' D~~~ S~OI ~ f{d/ ~ ~}hud . l 5 7 r.r

~. ~7JIARD, L~o

%.. •JRl) Sz · lar~

2~80 Torrey Pines R.D._

Cr1.J i forr,j e I. ... A. 10 LL... A U •• A. Professeur G. CROUZAT- REYNES La baratoire de Physique Pharmaceutiq ue Faculte de Medeci ne et d e Pharmacie 2 bi s, Bo ulevard Tannelle TOURS (1-&-l.) FRANCE m r ns. ,,. 215 · vr i 1 I'J 67

Je vous serais Ires oblige de m'adresser un tire ii part de votre publication I should be greatly obliged if you could send me a reprint of your paper

Q the. dec;r.e; ~.e of e tro1 J' 1n :, tLf rr.,ortyn· .. mj c

}3y~terr by t P 1ntervent1o of 1ntel1i£" t

be inn:;. Avec mes sentiments Ires reconnaissants. Yours very truly.

THE UNIVERSITY OF MANITOBA

Depanment of Microbiology Winnipeg 19, Manitoba, Canada

I should be very pleased if y ou could send me a reprint of your paper:- tf>... /L Zuc.a=ecu.Q '} ,C~7 ?&o. a z4:w.a-t;z~aMrc \faT~ ~ & /~4.~~;__ 'f '~f1r-eM: der(F. ~ "4f<:,{t'2.VCau~J J:,o-,c12 " ~/f. /Y6 ¥

Yours sincerely,

G-743 Mrs L Szilard 2380 Torrey pines PUJad

La Jolla, Cal. 92038 TJANSTE ILunds Universitet USA Department of Sociology Research Policy Program University of Lund Lund Sweden R ES I ~ AH C H POLI CY PllOGil AM Uni versitr of Lund Lund. Sweden

l should g reatly appreciate a reprint f~ ( your articll':

___ "Qn_!fle __decr~ _ase___ of Eutropy in a therm:Xlynarnic system

______]:)y __ t:h._e .~~~ - : ..... which appea red in Behavioral Science

Vo l. Pa~e / 9.

Yo urs sin cere/ )·, ./) ~;c.,__

1o ·B GRAHNS tR .. LU ND S . Dedijer (THIS SIDE OF CARD IS FOR ADDRESS) Univer s i ty of Illinois College of Medicine Office o f Research in Medical Education P.O. Box 6998 Chicago,· Illinois 60680

Thank you. TA FORD U IVERSITY ~ 1!\;\JI·ORD. U \1 II·ORNIA y~ 305

DlVISION OF ENG INEERING MECIIANICS

De c e mber l OJ 1965

Mrs . Le o Szilard 2380 Torre y Pines Road La J ollaJ California 92038

Dear Mrs . Szila rd :

I w as v e ry pleased to see that Be ha viora l

Science ha published your husband ' s epochal

paper "on the Decrease of En tropy "J and would

be most grateful if you cou ld spare me a copy .

Wi th best wishes J

Yours s ince r ely )

ichae l A . Arbib Research Associate

MAA/mrh STANFORD ELECTRONICS LABORATORIES

STANFORD, CALIFORNIA

29 August 1966

Mrs. Leo Szilard 2380 Torrey Pines Road , California 92038

Dear Mrs. Szilard :

Further to my l etter of D ccmber 10 , 1965, I was very pleased to see that B havioral Science has published your husband's e pochal pape r "on the Decrease of Entropy", and would b e most grateful if you could spare me a copy.

With best wishes,

MAA:rb VETERANS ADMINISTRATION

HOSPITA L DOWNEY, ILLINOIS 60065 January 11, 1966

YOUR FILE REFERENCE : L. Szilard 180 2380 Torrey Pines Road IN REPLY REFER TO : ·LaJolla, California

Dear Dr o Szilard:

We would appreciate recelVlng two (2) reprints of your paper: On the Decrease of E ntropy i n a T hermodynamic System by the I ntervention of Intelligent Beings, which appeared in: NEUROLOGY AND PSYCHIATRY, Vol. 18, No. 8, Secti on VI I I , August, 1965 . Thanking you in advance.

Si11cerely ypurs,

·, ,\" .. ~J 'h'. . .• . """ 0. I. JAMES YO G, .Do, Ph.D. Chief, Neurolo~--~

d/~ ;:- I ;UP. WILBUR Fo RO , M Assistant Chief, Neurology Service

Show veteran's full name and VA file 111tmber on all correspondence . If VA number is unknown, show service number. - ·. ATTENDING STAFF ASSOCIATION 7601 EAST IMPERIAL HIGHWAY, DOWNEY, CALIFORNIA SPruce 3-4331 • TOpaz 9-0921

September 14, 1965

Mrs. L eo Szilard 2380 Torrey Pines Road La J olla, California 92038

D ear Mrs. Szilard:

I was very much interested in the translation of your husband 1 s article on 11 D ecrease of Entropy, 11 which appeared in the O ctobe r 1964 issue of Behavioral S cience .

I shall appreciate your sending me a reprint of this for further study and consid erai ion.

Since r e ly,

WW:at Worden Waring, Ph. D. Project Director August 6, 1965

Mr. George B. Connor Nucleus Cybernetics Organization 3038 Bishop Road Wickliffe, Ohio 44092

Dear Mr. Connor:

This is to acknowledge your letter of July

31, 1965, in which was enclosed your check for $5.00.

As I am unfortunately not able to fill your reprint order, I am returning the check, herewith~ with thanks.

Veto/ truly yours,

Mrs. Leo Szilard pm September 30, 1965

\)~,. Ross J. Cox Temple University School of Medicine and Hospital Broad & Ontario Streets Philadelphia ~~ Pa.

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&s , R e b c r t a 8 z a t :r-he:r Dr. Robert P . Williams ·u se ~terra ME& Wq Dept. of Microbiology l :tSS ltugelcs ; 8altfotuie- Baylor Univ. Call. of Med. Houston, Texas

Dr. Roberta Crutcher 1250 Sierra Alta Way Los Angeles 69, Calif. Tw (--- r~ ~ - I Farrington Daniels.Jr.M.D. Dr. P. Aiyappan Pilla! Dr. Eugene Garfield Dermatology Division The Rockefeller Institute Cornell Univ.Medical Coli. 66th St. York Avenue Inst. for Scien. Inform. 525 East 68th Street & New York, New York 10021 325 Chestnut Street New York, New York 10021 Philadelphia, Pa. 19106 Dr. Howard Femin Paul Kenny McArdle Labor. for Cancer Dept. of National Health ~For-i~M,~~~illtm;tll!liRif'" R e s e arch ~~. lhl:iid we: University of Wis i and Welfare i a • ~ ~ l , eta 1 U'8 y con s n Laboratory of Hygiene 8hl z ; k ' & ?. H'itla Madison. Wisconsin 53706 .tl iM l&&tsi.~. ... • r: 4 Ottawa_ CanadA ..,

August 10, 1964

< I .:) 1 Dr. James G. Millar, Dir ctor •\. Mental Health Resea.rch Institute The University of Michigan r Ann Arbor, Mi.chigan 48104

Dear Dr. Miller:

Enclosed is the revised copy of Szilard's paper "On the Decrease of Entropy in a Thermodynamic System by the Intervention of Intelligent Beings. "

I wish again to assure you of my regret at the large number of changes, which will certainly cause you and Dr. Rapoport trouble and distress. They were not made thoughtlessly, but with the knowledge that Leo was very punctilious about trans­ lations, and insisted on the preservation of all the intricat­ ness of his technical style.

Mrs. Szilard has arranged for the Salk Institute to handle the distribution of reprints, and asks that this be indi­ cated at the end of your explanatory note. I am enclosing the reprint order form, partially completed. I shall get the Salk Institute to send a purchase order when I receive the galley proof. Please send this to me at the above address .

Mrs . Szilard asks that any other correspondence witt. her be addressed to her present home at

2380 Torrey Pines Road La Jolla, California

Very .sincerely,

Carl Eckart

CE:bg Encl. ·.

Gertrud \>leiss , H. D. 2380 To~ Pines Road Ln Jolla, California 92038

Aucrust 19, 1964

Dr. Carl Eokal"t Professor of Geophysics University of California La Jolla, California

Dear Co.rl:

I Dli1 sending you attached the page ~·;ith the correction I really uould like to aee made as uell as the letter I have rri tten "to D± • ;iller explaining this change which you may or tru:lY not .-dsh to forward to him. If thi::. d<>es not e;o verJ' much against your c;ra.in and if you s&';l no objections from the point of viat.t of the Urd.versity of Cal.1forn1a, 1 uould really prefe:t' it if your of.fioe "trould tako oaro of the reprints. I ment1oned this very briefly last nir;ht to Ror;er Revelle and to 1-lal.ter Hunk lmo both thought it appropriate and feasible.

You see, at tho t.imo that penrd.ssion 1-re.s ei,ven for a. translation of this paper Leo uo.s still associated with the University of Chioaeo and his a.ff111at1on ldth the Salk Institute as Resident Fellm-1 did not beoome effective until April l so 1f you tltlnk it should not be the University of California, the University of Chicago '\rould be an alternate solution and I will be glad to approc.oh them i.(.' you icl.sh me to do so. I 'tJil1 also be ela.d to sond them out nzy-sel..f from roy private address but I roolly think 1 t would be bettor to loava the Salk In.stitute alone ;i th this rna ttor • If you think this should bo done, please talk this over Hith 1-Jr. Burke Fry, tho Vico Presid

Enc. puss ~F SERVICE • \' f.-- SYMBOLS ' ' This b a fast m essage DL= Day Lotter unless its deferred char.. WESTERN UNION NL=Nighr Letter actcr i;' indicatcd by the proper symbol. 1201 (4-GO) LT-lnternarional TELEGRAM '\. - Lcucr Telegram w. P. MARSHALL. P~UID&NT The filing time shown in the date line on domestic telegrams is LOCAL TIME ==== ar poinr of origin. Time of receipt is LOCAL TIME ar point of destination SYA332 08562 -- 0 s D A7 7 6 N L p D= T D sD LA J 0 L LA cAL I F 2 2= 22 PIA "' :MRS LEO SZILARD DLR DONT FONE= ,, / 1 : CARE 0 F DR S W RACK E R 45 4 US T P R0 S PE C T AVE MT V E R NO N NY::

=CQNFIRM ESTIMATE THAT REPRI ~T WILL BE EIGHT PAGES= CARL ECKART= •

THE COMPANY WILL APPRECIATE SUGGESTIONS FROM ITS PATRONS CONCERI'HNG ITS SERVICE October 13, 1964 Mr. Robert L. Brown waverly Press Mount Royal and Guilford Avenues B:lltimore, Maryland

Dear Bob:

Mrs. Leo Szilard sent an order to Waverly Press for reprints of the article "On the Decrease of Entropy in a

Thermodynamic system by the Intervention of Intelligent Beings 1 " by Leo Szilard, Behavioral Science, October, 1964 issue. She 'r.Lshes to cancel that order and sub titute the following order for r prints:

100 or tio reprints without covers 400 reprints without covers Total 500 reprints without cover Please ship to:

Mrs . Leo Szilard 2380 Torrey Pines Road La Joll , Co.l.iforni 92038 Plea e bill Mrs. Szilard t the above addrc o, for the additional 400 copie • Sincerely yours, /' Jett~t" V- <:J~~~a.J (Mrs . ) Sandra Swineb Editorial Assistant

SS:cjt cc: Mrs. Leo SZilard . :.

MAX-PLANCK-INSTITUT FOR HIRNFORSCHUNG 6 Frankfurt a. M.-Niederrad OeutscbordenstraBe 46 Telefon 674041

'L. ~

lc- lc\\<., J ~~,\ , ~~,.-""'~ q')___~~%

'Y'l • .I

l cv-r 'h "'"bo-"'L ~ l ""-...c. . y· ~ d\ "' (_~~\--f ~ ·,"" '-- ~ • """ ~ "-'" sJ~~ 1¥'\~'v~- ~ v) }jJJ )" :\ '&,_,,_.r- ,, . 7 D~ '0c~ ~~ y ~ l~'~', ' l ~ '\0 1 r-y ~"' '0. "l ~J ....__""- v~ h~'kC~ February 23, 1965

Dr. Charles H. Markham Max-Planck-Institut Fur Hirnforschung 6 Frankfurt a. M.-Niederrad Deutschordenstrasse 46 Germany

Dear Dr. Markham:

Thank you for your kind letter of February 17. Enclosed you will find a copy of the reprint which your requested and I thought that you or one of your colleagues at your Institute might also be interested in my husband's last paper and am, therefore, enclosing a reprint of it, also.

Sincerely yours,

Gertrud Weiss Szilard, M.D. Mrs .Leo Szilard 2)8o Torrey Pines Road La Jolla, California Hematology Research Laboratory Massac~~s~~eneral Hospital Boston ~ssachusetts / Dear [rr. Szilard: I should appreciate ceiving a reprint of your article entitled: rease of entropy in a thermodynamic rvention of intelligent beings. appearing in: Behavi oral Sci., 2_: 301 (1954) 325 Chestnut Street Philadelphia Pa 19106 I Telephone 215-923-3300

March 8, 1965

Mrs . Leo Szilard 2380 Torrey Pines Road La Jolla, Calif . 92038

Dear Mrs. Szilard:

This will acknowledge receipt of the two reprints and the copy of Dr . Szilard's "Ten Commandments" which you so kindly forwarded to Dr. Garfield.

At the present time Dr . Garfield is in Europe conducting a series of seminars , and he will see the material you sent on his ~eturn to Philadelphia at the end of this month .

On behalf of Dr. Garfield may I express his sincere gratitude for your thoughtfulness in sending him this material.

Sincerely yours, ~~f~k~.~? (Miss) Frances J. Kordawitz Secretary to Dr. Eugene Garfield fjk . I {0 INSTITUTE FOR SCIENTIFIC INFORMATION 325 Chestnut Street Philadelphia Pa 19106 Telephone 215/923-3300

~~~TO,_------=;DA;TE======~

SIGNED _

PLEASE RETURN THIS COPY TO SENDER ' •l • • I> • t- ~ ,.

~~-roTa------~DA;=====TE ======~

SIGNED •

COPY FOR PERSON ADDRESSED ' I

Mrs. - 2380 Torrey Pines Road - La Jolla. California - 92038

March 8, 1965

Mr. Arnold Reisman 25211 Yacht Drive Dana Point, California

Dear Mr. Reisman:

I am enclosing the reprint you requested.

I am sorry there are no more reprints of the Teller ob i tuary but here is the reference which I hope will be o f h elp:

DISARMAMENT AND ARMS CONTROL An International Quarterly Journal Volume 2, Number 4, Autumn 1964

Sincerely yours

Gertrud Weiss Szilard, M.D.

GWS/pem

Enclosure \ ' ' , l.. # .. . ..

UNIVERSITY OF CALIFORNIA, LOS ANGELES

BEHKELEY • DAVIS • 11\VlNE • LOS ANGELES • l1IVERSIDE • SAN DIEGO • SAN FHANCISCO SANTA BAHBAHA • SANTA Cl\UZ

GRADUATE SCHOOL OF BUSINESS ADMINISTRATION LOS ANGELES, CALIFORNIA 90024

March 4, 1965

Mrs. Leo Szilard 2380 Torrey Pines Road La Jolla, California 92038

Dear Mrs. Szilard:

If still available I wonder if I could ask you for a copy of a paper by your late husband which recently appeared in Behavioral Science and which dealt with life and entropy. I understand from Dr . Marschak that you might also have copies of Dr. 's remarks in the form of an obituary to his mentor. Will you kindly send these to my home: 25211 Yacht Drive, Dana Point, California. Thank you.

Respectfully yours,

( ' h ..;; / /~:..? "" < --~ Arnold Reisman

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NUCLEUS CYBERNETICS ORGANIZA liON ENTROPY DECREASING SYSTEMS

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