STANFORD UNIVERSITY Y
STANFORD, CALIFORNIA

DEPARTMENT OF BIOLOGICAL SCIENCES

March 30, 19606

Dear Joshua:
One of my students, Stu Nachtwey,
wants to vet some UV photos of Tetrahymena
at different periods of its interdivisional
cycle after hent shock. He is studyins the
sensitivity of the differcnt phases to radiati ns
Since you said you only wanted the
quartz optics for a brief trial, I presume that
it will notninconvenience you to return them to
Paul so that Stu can get them for his use,

sincerely,

Arthur G. “iese