Dr. Barry Commoner, Henry 8hsw School of' Botany, University of Washington, Saint Louis, Hisaouri, WeSoA* 9th March, 1955. Dear Dr. Comoner, As you will see from the enclosed, I have now taken ghota- graphs of dry B8 and written a short note on the result, afraid this nay seem rather hasty, but the erdvsntage of sending sonethiilg to Nature immediately Is that it would appear lrnraedlately following the Riah Dunite and Hewmark note, of which I am sending you 8 copy. I ahah, of' course wait fop your coments before ac- tually sending it ta Nature, but I have warned the Editor that it is on the way. If you would care to add 8 bit more informtian about B8 and its relationship to polpsrised X, and mke the thing a joint publioation, 3 should be vefy glad if you would send me what you would like to add, and either malce or leave me to aaake the appro- priate modifications in what I have written. I am I have not yet got prints of my photographs, but the result8 will look soraething like this I have #ust received frm Takahashi a saaple of prateln X. It 1s apparently turpalyleerised, SO f shall put it at pH 5 and see what X can get f'rm It. ence between Rich's reaults and mine is due to method and how much to the material. I am anxious to know how much of the dlffer- Reading your papers and Takahashi's there ereemas to be one point of difference between B8 and polyaerlsed IC: on which you make no cmwnt. as Takahashi states thnt the polymerisstion of X at pH5 Is reversed 8% PW. 1 should be most gratePdL If you would let me bave your com- ments on (and possible additions to) my note AS quickly as possible. You state that B3 polpmerises irreversibly to 138, where- Yours sincerely,