xlvii 



-when this tree had bloomed in April at St. Louis, and that was 

 in 1842, in which year the season was two weeks earlier than 

 this. 



Dr. Wislizenus exhibited a larva which was found shining in a 

 cobweb after having been mutilated. Mr. Riley said it was the 

 larva of our commonest " fire-fly" {Photinus pyralis), and gave 

 an account of its transformations. 



Mr. Judd presented a tooth of a Mastodon, found in Illinois. 



Mr. E. F. Hobart was elected an associate member. 



May 15, 1871. 



Albert Todd, Esq., in the chair. 



Publications received were laid upon the table. 



Mr. C. V. Riley exhibited some silk- worm cocoons, spun by 

 worms fed upon the Osage Orange {Madura aurantiaca). 

 He had experimented with this plant, and had been quite success- 

 ful. The worms were exceedingly healthy, and the silk seemed 

 to be of fair quality. He also asked for the appointment of an- 

 other recording secretary, as he was about to leave for Europe. 

 Mr. Hayes was appointed. 



Mr. Hayes stated that he had observed several shooting-stars 

 a about 9 o'clock on the evening of the 7th instant, and in a nar- 

 row space up to 1 1 o'clock he had counted nine, some of which 

 were quite brilliant, and one more so than the planet Venus. We 

 were now approaching the belt of shooting-stars, and from the 

 24th to the 26th of May quite a number might be expected to 

 be seen. 



Dr. S. V. Summers was elected an associate member. 



June 5, 1 87 1. 



Vice-President Wislizenus in the chair. 



Thirteen members present. 



Exchanges received were laid upon the table. 



Mr. Conant presented some Indian relics taken from a mound 

 at Grand Rapids, Michigan. Among them was a knife and 

 several needles made of copper, and a small, round, stone-shaped 



