THE AMERICAN MONTHLY 



[Jan. 



A New Tube for the Culture of Anaerobiotic Micro-organisms. 



Bead Before La Societe D'Hygiene by Ferdinand Jean, director of the 

 Society Laboratory. 



The apparatus which I have the honor of presenting 

 consists of a test tube 15 millimetres in diameter and 12 

 or 13 centimetres in length and having the mouth nar- 

 rowed and closed with a ground glass stopper. A small 



glass tube, the end of which has been drawn out and 

 closed, in a Bunsen burner, is attached about half way 

 down the principal tube so as to form an angle of 25°. 



The uncorked tube, being held vertically, is filled to 

 depth of two centimetres above the lateral tube with 

 the liquified nutritive gelatine. There it is heated in a 



