Polytechnic Association Proceedings. 1021 



remarks from Dr. W. Rowell, Mr. C. E. Emery, Mr. Fisher au'l 

 others. 



Several other mventions were exhibited. Pratt's adjustable 

 scrubbing brush attracted the special attention of the ladies present, 

 and seemed to meet with their decided approval. Sogg's sash-stop 

 and fastener; and Sogg's combined hoe and corn planter, the pecu- 

 liarity of which was the hollow handle of the hoe through which 

 seeds passed from a small box on the end of the handle and 

 dropped on the ground at the right time and place. 



THE TIBIA OF AN ELEPHANT. 



Dr. D. D. Parmelee sent to the Chairman the following commu- 

 nication: 



"The bearer of this brings to you and the Polj^technic Associa- 

 tion, a fossil which is supposed to be part of a mammoth, or 

 mastodon. It was found about half a mile north by east from the 

 landing, on this side of the river, of the Thirty-fourth street, New 

 York, ferry boats, and four hundred yards from the natural shore — 

 i. e., what would be the natural shore but for recent improve- 

 ments — of the East river; eight feet below low water mark, and 

 thirteen feet below the surface of what are called the Meadows, 

 separating Hunter's Point (now called Long Island City) from 

 Ravenswood; an alluvial deposit varying from one-sixteenth, of a 

 mile to one-quarter, or more, of a mile in width. The fossil was 

 dredged up while forming a canal along which docks have recently 

 been completed by the Union College estate, under the direction of 

 Mr. H. N. Anable, for the accommodation of vessels carrying freight 

 for the various industrial operations carried on in the vicinity, 



"The fossil is now in the possession of Cornelius Reynolds, Esq., 

 who resides near the locality where it was found, and who presents 

 this letter to you." 



This bone, which proved to be a tiliia, or large bone of an 

 elephant's leg, excited great interest, and was subsequently made 

 the subject of an interesting lecture before the Institute, by Mr. 

 Waterhouse Hawkins. No other parts of the skeleton have been 

 found in the locality mentioned. 



ON A NATIONAL SCHOOL OF MINES. 

 The greater part of the evening was devoted to the address of 

 Mr. Rossiter W. Raymond, U. S. Commissioner of Mining Statis- 

 tics and editor of the American Mining Journal. 



