POOLE — ON METEOROLOGY. 14$ 



green pyritoue marble. — Yide Transactions, 1870-71, pp. 64. In 

 all probability the Middle Silurian strata of Waters' Hill participat- 

 ed in the pre-carboniferous and post Lower Helderberg movement, 

 which elevated the strata of McLellan's and Irish Mountains ; and 

 t4 iat thoy consequently formed part of the Silurian boundaries of 

 the Lower Carboniferous Lagoon, which subsequently became the 

 Pictou coal basin. They evidently formed a barrier on the North 

 against which dashed the waves of the sea throwing up the beach 

 and bar which is now known as the New Glasgow Conglomerate, 

 preserving comparative quiet in the sheet of water within, and 

 affording protection and comfort to the marine Radiata, Mollusca, 

 and Pisces of the period, the Lithostrontia, Crinoidea, Brachiopoda, 

 Lamellibranchiata, Gasteropoda, Heteropoda, Pteropoda, Cepha- 

 lopoda, and Cochliodus, which have left so many enduring monu- 

 ments in the beautiful ornamented limestones formed in the inside 

 of the barrier itself, — in the limestones of McLellan's Mountain 

 shore, — in the Gypsum of Irish Mountain, — in the Lithostrontian 

 and other Limestones of Spring ville, and in the Gypsum Lime- 

 stones and marble of East Brook, East River. 



Art. VII. On the Meteorology of Caledonia Mines, 

 Little Glace Bay, Cape Breton. By H. Poole, Esq., 

 M. E., Superintendent of Mines. 



{Read March n, 1^12.) 



In commenting upon the Meteorological phenomena recorded in 

 the accompanying table, which now embraces a period of five years, 

 I would in the first place draw attention to the general results 

 shown during that period. 



The mean Barometrical readings corrected to 32° were 29.8428, 

 and corrected for 60 ft. of altitude and force of vapour, 29.6439; 

 and the mean temperature was 40.35. The mean at night being 

 34.466, and the mean at noon being 46.184 degrees of Fahrenheit. 



The mean force of vapour was '2560 inch; and the relative 

 humidity was 73.50, saturation being 100. The mean ifinQU^ 

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