102 NATIONAL TRENDS IN BIOLOGY 



of such institutes can be gauged by the fact that but five 

 years ago the institute needed only 18,000 units of one 

 type of serum alone, and that in these five years the 

 amount necessary to supply the demand has increased 

 more than thirty times that sum. 



At the present time, in the physicochemical laboratories 

 of the institute, under the direction of Dr. Paul Wernicki, 

 more than 25,000 units of insulin a year are prepared. 



This Argentine Institute also prepares antivenin for 

 snake and spider bites, but such work is rather subordi- 

 nate to its other biological effort. 



At all of the Argentinian medical schools, research of 

 various kinds is carried on, the pathway down which the 

 experimentation follows being determined by local condi- 

 tions. Rosario is an industrial center, therefore one looks 

 for investigative work peculiar to an industrial region. 

 Cordoba is experimenting with new antirabies sera and 

 finding success, for, as stated before, sometimes two hun- 

 dred people who have been bitten by dogs, appear at this 

 institution in a single day. 



A little to the North of Cordoba is an inland salt sea, 

 called Mar Chiquita, which their scientists claim has the 

 greatest concentration of salt of any sea in the world. A 

 single insect form is the only living organism ever found 

 in this lake, whose water is made up of 29 per cent salt. 



An Argentine worker of the University of Buenos Aires, 

 C. Jakob, is known the world over for his massive work 

 on the nervous system, and Bernardo Houssay of the same 



