PROCEEDINGS. XI 



Ohdinary Meeting, Provincial Museum, 18th May, 1891. 



The President in the Chair. 



Inter alia. 



Principal A. H. MacKay read a paper entitled : Pictou Island. (See Trans- 

 actions, p. 76.) 



The President read a paper entitled : A simple proof of the completeness of the 

 differentia], dH/T, in thermodynamics. 



Mr. E. Gilpin, Jr., read a paper entitled: Notes on some explosions in Nova 

 Scotian Coal Mines. (See Transactions, p 58.) 



Mr. E. Gilpin also communicated a memorandum by Mr. H. G. C. Ketchum, of 

 the specific gravities and percentages of absorption of specimens of building stone 

 supplied to the Chignecto Ship Railway, as follows : — 



CHIGNECTO MARINE TRANSPORT RAILWAY. 



Sjyecijic Gravities, <&c., of Building Stone. 



Name of Stone. 



Joggins, N. S 



Seaman, Joggins, N. S 



A. E. Beaton, 6 m. from Tidnish, 

 McKelvey, Dorchester, N. B. . . . 

 Hagun's Cape, Maranquin, N. B. 

 Port Philip, N. S 



Wallace, 'N. S. ........... ..... 



Joggins (High) N. S 



Springhill, N. S 



Curran, N. S 



540 

 644 

 254 



598 

 955 

 870 

 750 

 f^05 

 832 

 753 

 844 



324 

 383 

 155 

 366 

 564 

 5?5 

 4.50 

 478 

 493 

 446 

 500 



2.50 

 2.47 

 2.. 56 

 2.58 

 2.44 

 2.60 

 2.50 

 2.46 

 2.45 

 2.45 

 2.45 



.5 ^ 



56-' 

 673 

 263 

 617 

 972 

 889 

 768 

 834 

 866 

 785 

 883 



p tj 



4.07 



4.50 



3.54 



3.16 



1.80 



2.18 



2.4 



3.60 



4.09 



4.25 



4.62 



Alexander McKay, 



Recording Secretary. 



