Ixxxv 



March 19, 1883. 

 J. M. Leete in the chair. Eight members present. 



A paper was read by G. Hambach entitled "A Description of 

 New Species of Paleozoic Fossils," with plates. The paper was 

 referred to the Publication Committee. 



Aj>ril 6, 1883. 

 A. Todd in the chair. Six members present. 

 The meeting was devoted to business. 



April 20, 1883. 



Dr. Engelmann in the chair. Eight members present. 

 Mr. Nipher exhibited a plaster model representing the surface ^ 

 whose equation is 



y ^ X ^ 



and made some remarks on the properties of the surface. 



May 7, 1883. 



Dr. J. M. Leete in the chair. Nine members present. 



Mr. Nipher read a paper on the " Evolution of the American 

 Trotting-Horse," which was referred to the Publication Com- 

 mittee. 



He also exhibited a map of New Madrid County, Mo., which 

 showed the present location of all swamp land in the county, and 

 also showed the location of the Spanish land grants made prior 

 to the earthquake of 181 1. 



It was apparent at a glance that the Spanish grants are all on the dry land 

 of the present day, and it is beyond all dispute that these grants cover pre- 

 cisely the land which one would now select as most desirable. The map 

 was sent by Mr. A. O. Allen, of New Madrid, who first called attention to 

 this fact as furnishing conclusive proof that no material or general change 

 of level occurred during that earthquake. 



Mr. Nipher also remarked that 



