Telephone | Harpenden 4671 Railway Station: Harpenden (Central)

ROTHAMSTED EXPERIMENTAL STATION
(LAWES AGRICULTURAL TRUST)
Director: F. C. BAWDEN, M.A., F.R.S.

Head of Biochemistry Department : HARPENDEN
N. W. PIRIE HERTS

PLEASE ADDRESS YOUR REPLY
TO THE WRITER BY NAME

14th June 1%4
Dear Lederberg,
Dig you coin the word exobiology ?

If so: where ? If nots: can you tell me who did and
give the reference?

In either event could you give me a definition ?
My attempt would go something like. The study of
systems that resemble in some respects terrestrial
living forms but that appear not to have a terrestrial
origin,

Yours sincerely

BM Pe
re we
The shady of Ales wodeSinn af Ae Degree

Lary - ( crnkra, eso brelogy, , ne on paw