RF Annual Report - 1935 - The Rockefeller Foundation

THE NATURAL SCIENCES 157
mechanism of secretions, the permeability of a
variety of cellular tissues, intracellular pH determination,
the salt content of protoplasm, mitosis,
and the problem of differentiation
and
monstrous growth in tissue cultures.
Columbia University
Physiology
Columbia University has received a grant of
$7,500 toward the researches of Professor Kenneth
S. Cole of the Physiology Department over
a period of two and a half years beginning January
1,1936. Professor Cole for the past nine years
has been concerned with the electrical characteristics
of cells, of suspensions of cells, and of tissues.
Measurements are made of the electrical
properties of the interior substances and the
retaining membranes in the case of both normal
and abnormal living cells. While other investigators
have usually worked with direct current,
Professor Cole uses alternating currents whose
frequencies vary over the wide range from 35
cycles a second to 16,000,000 cycles a second.
This requires extensive and delicate apparatus,
but produces results of increased significance.
Clark University
Neurophysiology
The amount of 35,700, or as much thereof as
may
be necessary, has been appropriated to
© 2003 The Rockefeller Foundation