278 
Statistics, Stockholm, Sept. 24 (96-99); and Prof. Roki- 
tansky. 
Letters of envoy were received from the Verein fiir Erd- 
kunde, at Halle an der Saale, Nov. 18, asking for exchanges. 
On motion this Society was placed on the list of correspond- 
ents to receive the Proceedings. 
Also from the Physical Society at Geneva, Sept. 15; Cen- 
tral Bureau of Statistics, Stockholm, Sept. 24 ; Meteorologi- 
cal Office, London; and the U. 8. Coast Survey. 
A letter was received from the Royal Institution, G. B., 
Albemarle street, London, Nov. 22,acknowledging the receipt 
of Proc., No. 88, and asking for the completion of their sets 
of Proceedings and Transactions of the A. P.8., which on 
motion was granted (Proc. 69, and Trans. N.S. Vols. IIT 
to XI, inclusive, and XIV, 11). 
The report of the Secretaries on Prof. Frazer’s resolutions 
made at the last meeting, was on motion, concurred in. 
Prof. Prime read a paper ‘“‘ On the Paleozoic Rocks of Le- 
high and Northampton counties, Pa.” See page 248. 
Prof. Frazer followed with remarks on similar rocks in 
his district of York and Adams counties, and exhibited 
some artificial brown hematite iron ore in the form of a pre- 
cipitate from pyrites. 
Mr. Lesley exhibited, in illustration of one of the subjects 
of Prof. Prime’s paper, some fine crystals of calcite enclosed 
in shells of brown hematite, obtained by Mr. Joseph Re- 
vere, of Canton, Mass., from a magnesian limestone cave 
back of St. Genevieve, below St. Louis, Missouri. 
Mr. Blasius read his postponed paper on Modern Meteoro- 
logical Method ; and referred to another on certain meteoro- 
logical facts and problems discussed by him at meetings 
of this Society. 
Mr. Blasius called attention to the gradual adoption of his views by 
prominent meteorologists without proper acknowledgment of their indebted- 
ness. Some of those views were promulgated as long ago as 1851. He had 
taken especial pains to publish them and to circulate them by private cor- 
respondence with other workers in this field of research, so that there 
seemed to be no excuse for any attempt to withhold the recognition which 
