Scientific Proceedings. 



2 I 



1. The introduction of alcohol into the intestine sets up a 

 reflex which causes a secretion of gastric juice. 



2. Section of the nerves which supply the stomach (vagi and 

 sympathetic), or the administration of atropin, prevents this reflex, 

 whereas nicotin has no such effect. 



3. Of the substances other than alcohol examined in this con- 

 nection, it was found that oil of peppermint also induces a reflex 

 secretion, but that other irritants, such as mustard and ether, do 

 not show this action. 



4. Section of the nerves, or the administration of atropin or 

 nicotin, followed by the introduction of alcohol directly into the 

 stomach, gave results similar to those obtained when the alcohol 

 was injected into the intestine. 



16. " The organism of smallpox," with demonstrations : GARY 



N. Calkins. 



The author, after briefly describing some of the phases in the 

 complicated life history of the smallpox organism — Cytoryctes 

 variola Guarnieri — demonstrated twelve stages of the organism 

 stained by an adaptation of the Borrel method, whereby the 

 organism stains red upon the green background of cell body and 

 nucleus. A similar parasite, as yet undescribed, in the macro- 

 nucleus of Paramecium caudatum, was also shown. 



17. " On respiratory stimulants," with demonstration : GEORGE 

 B. WALLACE. 



A demonstration was made of a method for estimating the 

 volume of expired air. A rabbit was used and the volume of air 

 expired under normal conditions, and after the animal had been 

 given a respiratory stimulant, was measured. The apparatus used 

 was a modification of the one devised by Dreser. In the experi- 

 ments reported by the author, the greatest increase in respiration 

 occurred after administration of atropin, the amount of expired 

 air being increased 75 fo. Strychnin produced an increase of 35 fo f 

 caffein 9 fo, cocain 7 fo, aspidospermin and quebrachin (two alkaloids 

 obtained from Quebracho bianco} gfo and 17 fo, respectively. 



18. " The intracellular reduction of gold chlorid," with demon- 

 stration : ALFRED N. RICHARDS. 



The author studied the effects of intravascular injections of 

 the double chlorid of gold and sodium. His experiments were 



