5 O2 voultures a are ‘sensitive to a fre: uont mutant of 73) and I've promised to end hin
_ te internediate cultures, However, zt don"t have 679, 679-680, and 1. wonder whether 2
S yk you could ‘send me those at your ‘sonvenience. Nothing else imsch; 167 is ‘behaving

  
   
  

 

. Dear Ede | |
Thanks for ‘the information on Tergitol 7. Carbide & Carbon sent 8 an 8 0%. -

r oe ae
pe

eampie | that should Last the rest of my natural Life. As soon as soae Long-anatted
“Ancubators come da, Ti get to work on indicator media, for Neurospora.

7 Here is a print from a cross of W108 x 146 (ee, x #) on the best | aynthette

EAB we've hit so far. *he forma is: (per Lier); .

4

Asparagine os 10
Da ee eS
oe uct 4 oo a

  

 

(In this case By aleo)

 

Tt works very well indeed to nak up 10 or 2 Liter batches in the ‘form of rn ary
mix, and this is very mich more cinvenient of course. -

_ dayon Novick, in Szilard's lab. > has been working at petting recombination in.
"K+l2 mtants using phage,’ e.g. mixing 58-161/1/6 and W-1/4/7 and then selecting
with 71,76, 1% , and T7. ‘His early reaults indicate, if anything, a remarkably high
| yield of mitiple reistante in the mixed cultures > with satisfactory controls. . |
—-Anyhon, he finds that fim algfors from K-12 in boing sensitive to 73 (the other | aay :

 

 
 
  
 
 

very peculiarly in ite segregation for dae, and a

found wtiat looks like suppressors of ‘Lae as treversions! of w12.
ae cp Bawt, Fegards# a -_ = Sapect vei be peeing you soon ae

Peg ws ee Barrie ? < ae
oF “go O48 eT fi ils Stet Ths Ee

’ an may be. an Anverston. ‘Esther's