1890. | REPORT OF GEOLOGICAL SECTION. 29 
The rules under which the Section is working are intended to 
combine at each meeting the proper scientific work of the Section with 
some instruction in the science, in order to reach and benefit all classes 
of its membership. In pursuance of this plan a portion of LeConte’s 
Elements of Geology has been assigned for discussion at each meeting, 
following the proper sectional work. 
Extracts from the minutes of the Section. 
October 28, 1889. The meeting was wholly devoted to organi- 
zation. 
November 4, 1889. The chairman, Mr. E. E. Howell, exhibited a 
section of the iron meteorite from Hamilton county, Texas, showed at 
the June meeting of Academy, and then supposed to be from Erath 
Co. The section measured nine by twelve inches, and the cutting 
required five hundred hours. 
Miss Ada M. King exhibited a Hamilton coral, A/ichelina. 
Mr. A. S. Mann exhibited a silicified mass of crinoid stems, from 
Greenwood county, Kansas. 
The geological map of New York city and vicinity, prepared by 
Prof. D. S. Martin, was explained by Prof. Fairchild, and specimens of 
the New York rocks were exhibited. ; 
Prof. A. L. Arey donated to the Section one hundred identified 
specimens of local fossils, on condition of a suitable place of deposit 
being provided. 
November 18, 1889. Tne rules for the government of the Section 
were reported by committee and adopted. 
Mr. J. M. Davison remarked upon a bezoar which had been 
exhibited, and discussed their formation, 
A fragment of drift-boulder impregnated with garnets was 
exhibited by Prof. Fairchild. Dr, Muecke presented specimens of a 
red celestite found by him in the quarries at Brighton, and discussed 
their origin and occurrence. 
Mr. Preston read the following notes on some minerals from Magnet 
‘Cove, Arkansas, and exhibited the specimens. 
Messrs. Ward & Howell lately received from Magnet Cove, 
Arkansas, two shipments of mineralogical specimens, in which there 
were some species that have not before been positively credited to that 
locality, as far as I know, and others that have been quite rare. Among 
these was a specimen of yellow titanite which shows one or two crystals 
of small size of the typical form found so abundantly at Renfrew, 
Canada, but of a yellow instead of a brown color, and two or three 
