362 



AMERICAN MEN OF SCIENCE 



ions; the electrical charges produced in gases 

 by the diffusion of ions; action of Romgenized 

 gases in discharging non-conductors. The dis- 

 charge of electricity from points. 



Ziwet, Prof. Alexander, 644 S. Ingalls St, Ann 

 Arbor, Mich. * Mathematics, Mechanics. Bres- 

 lau, Germany, Feb. 8, 53. C.E, Polytech, 

 Karlsruhe, 80. Asst, U. S. Lake Surv, 80-82; 

 U. S. Coast and Geod. Surv, 82-87; instr, later 

 asst. prof, junior prof, and prof, math, Michi- 

 gan, 88- F.A.A; Math. Soc. (assoc. ed, 'Bui.'). 



Zoethout, Prof. W(illia)m D(ouwes), 6225 Green 

 St, Chicago, Ills. Physiology. Birdaard, 

 Netherlands, Aug. 19, 71. A.B, Hope, 93; 

 Ph.D, Chicago, 98. Prof, physiol, Harvey Med. 

 Col, Chicago, 99-04; Jenner Med. Col, Chicago, 

 05- Asst. physiol, Chicago, 00- Effect of ions 

 on muscle-tone; contact irritability. Effects of 

 hydrogen and hydroxyl ion on musele-tone and 

 the reversibility of these effects; analogies be- 

 tween the physiological effects of high tempera- 

 tures, lack of oxygen and certain poisons. 



