Artificial Mothers' Milk, 129 



netting, however, continues producing a gas known as 

 fumes of formic aldehyd. As soon as the fume? 

 are strongly noticeable to our smelling organ, then 

 the desired effect has been attained. The lamp is an 

 invention of Professor Tollens, of Goettingen, and 

 may be procured through Messrs. Eimer & Amend, 

 20.") Third avenue, New York city. 



