510 On the Regulation of the Administration of Chloroform. 



Instead of attaching the face-piece to the stem of the apparatus, a 

 piece of flexible tubing may be interposed, the apparatus being sup- 

 ported on a stand. 



For the illustrations of apparatus and help in the work the author 

 is much indebted to Mr. A. Angel, B. A., 'Christ Church. 



