F. C. Bawden (1908-1971) was a pioneering plant pathologist and virologist based at the Rothamsted Experimental Station in
England. He and N. W. Pirie were longtime collaborators in plant virology. During 1957 Franklin's team studied a number
of different virus samples provided by Bawden, and elucidated their structures.
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1957-02-22 (February 22, 1957)
Bawden, F. C.
Rothamsted Experimental Station
Original Repository: Churchill Archives Centre. The Papers of Rosalind Franklin
Reproduced from the Franklin Collection at the Churchill Archives Centre with the permission of the copyright holder.
In the series of density distribution curves which we have obtained for different strains of TMV we have the rather surprising
result that the one which most closely resembles the common strain is Holmes Ribgrass. This naturally causes people to enquire
whether the bottles were wrongly labelled. So I wondered whether you would be kind enough to check the identity of our preparation
for us by looking at the symptoms it produces -- this, I imagine, is the only reliable test for the purpose, and is one which
we are not in a position to carry out ourselves.
I enclose a small quantity of the preparation, which was given to us about a year ago by Roy Markham, and which had been stored
by him for some years.
I should still very much like to look at Potato X if you ever have any to spare.