134 bulletin op the 



126th Meeting. June 2, 1877. 



The President in the Chair. 

 Thirty-one members and visitors present. • 

 Mr. B. F. Greene made a communication on 



AN adjustable BINNACLE FOR THE CORRECTION OP A SHIP'S 

 COMPASS. 



Mr. Antisell continued his remarks on 



TERRESTRIAL GEOQONY. 



127th Meeting. June 16, 1877. 



Vice-President Welling in the Chair. 

 Twenty-one members and visitors present. 

 Mr. Antisell, by request, continued his 



CHEMICAL REMARKS ON TERRESTRIAL GEOGONT, 



describing the successive processes by which the chemical ele- 

 ments of the original nebulous matter may have combined in 

 forming the present earth. 



The formation of the earth was further discussed by Messrs. 

 Powell, Ward, and Doolittle. 



128th Meeting. October 13, 1877. 



Yice-President Hilgard in the Chair. 

 Twenty-seven members and visitors present. 

 The minutes of the last meeting were read and adopted. 



Mr. E. B. Elliott exhibited a diagram, which he had devised, 



