ISOLATION OF BACTERIA IN PURE CULTURE 181 



Professor W. A. Starin of the author's department, a 

 former student of Professor Barber, has done some excellent 

 work with this apparatus. 



Fig. 133. — Diagram of Barber's isolation apparatus. 6, moist chamber; 

 ms, large cover-glass over moist chamber; p, small pipette drawn out to a 

 fine point ; k,r,g, pipette holder ; /, screw for raising and lowering k,r,g;s, 

 screw for lateral motion of k, r, g; n, screw for clamp on pipette which allows 

 it to be moved in or out; m, mechanical stage of microscope; t, rubber tube 

 held in the mouth and used to move the liquid culture medium in the 

 pit)ette. (Journal of Infectious Diseases, October 20, 1908, vol. 5, No.4, p. 381.) 



