237 



The Committee to whom was referred the medical prize 

 theses, reported. 



Mr. Honeymaii, by invitation, read a paper on the varie- 

 ties of transported boulders found by him in the banks and 

 " red heads" of the Nova Scotia shore for twenty miles east of 

 Halifax, and along the harbor and railways to Winsor and 

 Pictou ; showing, by means of a colored map, and specimens 

 containing fossils, and specimens of amygdaloid, agate, 

 syenite, dolerite, diorite, granite, iron ore, &c., that the de- 

 posit at Halifax was the terminal and medial moraine of a 

 glacier having its base along or behind the Cobeqnid moun- 

 tains, 80 or 90 miles distant, and that the arc of collection 

 and dispersion, of which Halifax was the centre of concen- 

 tration, had an amplitude of 45°. The strioe on the rocks 

 towards Halifax had an average trend of S. 5° E.; towards 

 Windsor of S. 20°— 30° E.; and towards Pictou of S. 25° W. 



The thanks of the members present were warmly expressed 

 by the presiding officer and others. 



Professor Houston described some results which he had 

 got with a Crooke radiometer in a good Geissler tube of his 

 own manufacture, going to show that light was ancillary to 

 heat in the action of the instrument. Presenting, however, 

 non luminous rays of heat, as for example from heated 

 copper, a small but decided motion was obtained. Moon- 

 light gave no motion , but he intended to concentrate moon- 

 light on the flags by means of a 16" Fresnel lens. 



Mr. Briggs reminded him that the thermopile revealed 

 heat rays in the moonbeams, and an alum plate would be re- 

 quired to make the experiment satisfactory. 



The minutes of the last meeting of the Board of Officers 

 were read. 



Pending nominations Nos. 793 and 803 were read. 



On motion of Mr. Price, the Secretaries were instructed 

 to reply to Mr. Kesselmeyer's letter, respecting the Calenda- 

 rium, declining his proposals. 



And the meeting was adjourned. 



