species of bees. The corolla is two-lipped ; the upper lip arches over the 

 lower and at the time of pollination is nearly horizontal, so that an insect 

 alighting on the lower lip and forcing the upper lip back, to enter, has its 

 thorax dusted with pollen from the stamens which are included in the 

 upper lip. This pollen is then carried by the bee or other insect to other 

 plants. 



Dr. Adams showed an instrument which had been intended for 

 a Mille-Ampere meter, but which he said could not be so called 

 as the instrument was not all reliable. Part of the scale on it wag 

 graduated to read Mille-Ampcre, and part to read Ohms. 



Prof. Nipher presented a paper on " The Scale Value of the 

 Dhlman Electrometer used by Dr. Wislizenus," which was refer- 

 red to the Committee on Pnblication. 



October 17M, 1887. 



President Nipher in the chair ; ten members present. 



Dr. Todd exhibited the wing of a pelican which he had par- 

 tially dissected to illustrate the explanation given by him at a 

 meeting of the Academy Nov. ist, 1S86, of the soaring power of 

 certain birds. 



Prof. Nipher exhibited a number of rifle balls which had been 

 shot by him from a Winchester rifle into water, and which showed 

 a variety of distortions due to the form into which the ball had 

 been cast. The experiment showed that balls with a sharp coni- 

 cal point suffered very little distortion and very much less than 

 those of other forms, and could penetrate the water with much 

 greater velocity. 



November ^th, 1887. 



President Nipher in the chair ; twelve members present. 



Dr. Hambach exhibited a series of photographic views of Yel- 

 lowstone National Park. 



Prof. Nipher read extracts from a paper ''On the possible Re- 

 sults to be expected from a Reversion of the Second Law of Ther. 

 mo-Dynamics," suggested by G. J. Stoney's paper on the same 

 subject, published in a recent number of the Transactions of the 

 Royal Society of Dublin. 



