ISTITUTO StERDTERAPICO MILAN ESE "SEMAFIND DELFANT “WIE onate ‘AGORERATO ALLA UMMPERSITA 01 MILANO “MHL ANO - VIA DARWIN, 20 eee i Sa Bg bbe rs i * " “TELEF. 90640-30677-81787-s2803-38017 ~ re hebite hiekotERseICO - mivaitg *! U.P. 1. OC. MILANO N. 48700 L me SERS 29/4/53 | ee | - Milano, Dear Joshua, : oo ‘Your circular letter and the gubsequent one of April 16 _ have been received.I have beeh delayed in. reperation of the manu- script by the death of my ‘adoptive father/ SfoPe ad curred on the 19th. His iliness,wiich aggravated itself in the last two weeks before the end, would have ade it impossibbe anseariuw fonsideraven oe mrki the pooble: of writing paper, even if your notes had arrived earlier. I have now sit down to start it,and sent a letter to Chain asking for the latest " date for vhich the manuscript should be in and explaining my reason. I | feel in a great’ embarrassment to send in a paper ,which will bear your Vname, and: which may not be se#gh by you before being sent to the press. I shalt’ do my best to have it approved by you before it is too latesin case the’ date ‘of reception of the manuseript is too early for having the manuscript’: ‘yevised by you, we might well withhold its publication t in the Proceedinzs of the Convress,and publish it somwhere else ket I am enclosing a réugh draft of what it should eventually look like,and shall send a £uiker more detailed sahple as Woon-as available. The pre-e sent draft may be useful to you for suggesting changes in the structure of the paper;kkaxnextx as to language, I think bebe ask the help of Dr.Jinks, from Sp a econe ade will be here after the list of hay to work for ong TE inet c e n seek tied We-s eT appes- + You do not theréfboawexhad need oon bout t angus se” form the wh 2.4) thing. e I have ene the kh @ eys 9° ee Londgn the whe I had planned to attend it,and ms up/ B gtget a ne needs SBy th&wamily. There seems to be nothing worth serious, coneidszation in it,but I have not had the time of digesting it fully. Yudkin's paper on Nature's issue of the 25th March may deserve more serious consideration,as it seems to offer the. most important contribution to confusion after Hinshelwood's work. Tn order to partially connteract its effects since now, I thought to send a short:letter to Nature,a dreft of which is enclosed. I should like to have your opinion on it,also because some of the opinions expres. sed in it should. be expanded in our joint manuscript. I also wonder if you approve of the interpretatior of Hughes'w work. I feel rather sorry that this joint paper ,which might have car-— ried sone: weight into the controversy ywill., have to. be prepared in a hurry. ‘ os : , 4 , Concerning Pyrex filter 3 ao please send the filter only. I think your instructions will be sufficient 3; I ext not realised that the filter was already fitted to a straight tube,and was worried about the joining of the filter and glass. 200 offprints of the JG paper were sent by ordinary mail... . & mecca, oh seericnn meson ied Cal axed al 1 Russet neeeasiere Ai 7 iti ican I heard from Barigozzi that he answered negatively your request bhatt. duread your apex. ab. the.fenatics,Congress,df you do, not. come. | T strongly ‘hope that you have managed to get the necessery , Puy \d.s for. coming. I do not ee who else could give this paper tur you.” * wound be a too posr substitute and would definitely refuse . Congress of Micra@biology .: liam thinking of,.asking five or six. | - people to give lesctures of about: 40" on. .the, main topicsnof genetics - of microorganisms.’ There: will ‘then bea. number... (not too high,for the morent:): of mostly unimportant short, papers. I have thought of the ® : pheno Low ing: d teps—edutation Siacherd oar Demerec); Seleétion (Ryan) : Genetic trameafer ( yourself on doli and. salmonella; thes two items “could also be divided: ’; Hotchkigs or Alexander on transf irmations). Other mossible special subjects {3 Pontecorvo or Roper on Aspergillus; Lysogenicity (who?,jhe answer ‘is jusually Lwoff,but Bertani might . .beva good substitute); Animal varuses g(iurnet }... Have yau any commenta ‘arid advice ? As +0 your -own. con¥ribution, there will ,be. no trouble | ‘inthis ¢ase for me to get -.as. a spekker for -you,as. 1 seem to be the. - almost uncentrolled . master of. tiis section. ang .the. Congress of hiicro | PS Bbollogy - Will be tuned-in a:more approximate and compromising way fy hee the Genetics Congress,in agreement with. the North-South -cra- ‘dtent .of staking-it- easgnoss prevailing in BUrOPe ws 2% eb e ‘Yours tt Ln es oe awh eong do — as be KA _P. S., 28th’ of April. the hanbieort yt! has been finished today and is exceédingly rough; 4+ may serve mainly sat this ‘stage,’ ““forchetking Logic rigour, polemical stréngth and order of expo=" _ sition, stress” on various items, sand things forgotten or super- / * flaous ~ Some of” thé” data were” niibtea by memory’ ana T must eheek Po thems but “please refer to Ary mistake or imprecision that you ES aig abaBover. I want to’senithis soon,so as to have time at lea- st for reaching your’ comment jon this preliminary a@raft.If Chain leaves no time for® sehding back to you the manuscript for a ~™ §" geed! @ coPrecti on’ “aby yourself, this. gould be dealt with through i the" proofs: - On ‘epeond eflection, ° T am uncertain whether to: answer Yudkin's paper 6 Nature; I am thetrefore not including the! dratt of this let er seentrary to what: pate earlier. ; yn 9 tet hin, 2 ee ratte a or nr eoweiie tenet ese 1 a