Dr. Wislizenus read a Summary of his Meterological Observa- 

 tions at St. Louis for the past year, which was referred to the Com- 

 mittee on Publication. 



Dr. Theodore Fay was elected an associate member. 



April 7. 1873. 



Vice-President Todd in the chair. 



Five members present. 



Exchanges received were laid upon the table. 



April 21, 1873. 

 Vice-President Todd in the chair. 



Seventeen members present. 



Publications received were laid upon the table. 



Several letters were read by the Corresponding Secretary relat- 

 ing to exchanges. 



Ordered that the Minnesota Academy of Sciences be placed 

 on our list of exchanges. 



Mr. Gage presented some relics from an Indian mound in Illi- 

 nois, and also exhibited a specimen of the shovel-fish found in the 

 Mississippi river. 



Dr. Engelmann remarked that it was a fish that inhabited our 

 waters, and had been sometimes sold in our market. It was 

 allied to the sturgeon, and known to science under the name of 

 Polyodon folium. 



Dr. Spencer exhibited a fang of the rattlesnake, showing the 

 canal, and its termination near the point of the tooth, through 

 which the poison is injected into the wound made by the bite. 



May 19, 1873. 



Vice-President Todd in the chair. 



Thirteen members present. 



Correspondence and exchanges were reported by the Corre- 

 sponding Secretary. 



