PNL Volume 18 1986 PREFACE & COVER

The financial report for the period 4/1/85-3/31/86:

Balance, 4/1/85

$1069.08

Dues collected

$1467.00

Financial

report

Expend!tures

Postage

Publishing costs

Bank charges

Bookkeeping

Typing

Total expenditures

135.72

39 3.51

28. 39

154.00

721.00

1632.62

Balance, 3/31/86

$ 903.46

G. A. Marx

for the Coordinating Committee:

S. Blixt

W. Gottschalk

E. Grit ton

G. A. Marx

L. Monti

I. Murfet

B. Sharma

B. Snoad

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COVER

R. H. Lock, whose likeness is depicted on the cover, made

several important early contributions CO the genetic literature

of Pisum. Born and educated in England, Dr. Lock spent his most

productive scientific years in Ceylon (now Sri Lanka) at the

Royal Botanic Garden, Peradenyia. He died at an earlv age (36)

but not before be published about twenty papers (four of which

are relevant to pea genetics) and two books. His book, "Recent

Progress In the Study of Variation, Heredity and Evolution",

first published in 1906, endured through four editions. Because

he received his graduate training during those extraordinary days

when Mendel's work was rediscovered, and because he enjoyed the

confidence and encouragement of William Rateson, Lock undertook

to confirm and extend Mendel's findings. This he did with con-

summate success. His 1908 paper, "The present state of knowledge

of heredity in Pisum", summarises what was known about the sub-

ject at the time. Incidentally, many of the populations analyzed

by Lock came from crosses made by Batesou, thus emphasising the

close tie between these two pioneerinc workers. Tn his work with

peas Lock not only confirmed the work of Mendel but also

demonstrated the phenomenon of epistasis, added a number of new

genes to the original seven described by Mendel, and commented

upon the question of species and phylogenetic relationships.

Moreover, he was the first to use descriptive symbols for

Mendelian genes.

(The drawing was executed by Elaine Gotham from a photo found in

the archives of the John Innes Institute and kindly furnished by

Dr. Peter Matthews.)

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