124 ROCHESTER ACADEMY OF SCIENCE. [ Jan. 12, 
disintegrating, and cited other illustrations of this unusual fact. The 
topic was further discussed by various members of the Section. 
Feb. 3, 1890. Various specimens were exhibited by the members. 
The topic, Internal Heat of the Earth, and Earthquakes, was discussed 
by the Section. 
Prof. H. L. Fairchild exhibited, in illustration of this topic, large 
volcanic bombs from Auvergne, France, and various forms of lava from 
other localities, especially from the Sandwich Islands. Also a series of 
lantern slides illustrating volcanic phenomena. 
Feb. 17,1890. Mr. E. E. Howell exhibited a portion of a new 
iron meteorite, recently added to the Ward and Howell collection, from 
Welland, Can., which was found April 30,1888. Mr. Walker presented 
a glaciated rock, obtained on a new street in the western part of the 
city. Mr. J. M. Davison described glacial markings at Saratoga. also 
others found beneath the Detroit river, Mich. 
Mr. Howell described glacial furrows two feet wide and one foot 
in depth near Dunville, on the north shore of Lake Ontario ; also fur- 
rows of a size sufficient to receive a cane, which made a complete turn 
in direction, a phenomenon he had noticed only at one other locality, 
St. Catharines, Canada. 
The topic for the evening, Geysers, was illustrated by specimens 
from the Yellowstone Park, and from Iceland. 
Various specimens were presented for identification. 
March 3, 1890. The topic for the evening being Earthquakes, Mr. 
Howell, the Chairman, exhibited a model and diagram of the earth- 
quake at Tokio, Japan. Jan, 15,1887. 
Professor Fairchild exhibited U. S. weather maps, and described 
the system of publishing weather observations. 
March 17, 1890. The by-laws were changed, making the meet- 
ings occur on Tuesday evenings following the first and third Mondays 
in each month. 
The topic for the evening was Organic Agencies, and the forma- 
tion of Coal. Professor Fairchild exhibited a quantity of material 
illustrating the subject, and described a peculiar deposit of peat, found 
in the city of Scranton, which showed the formation from peat, of the 
coal-like mineral known as dopplerite. Mr. Crump presented for 
identification a coal fossil, probably a cast of the pith of some coal 
plant. Other material was presented for identification by different 
members of the Section 
