NOTES ON MINERAL DEVELOPMENTS IN THE REGION 

 AROUND ITHACA 



BY HEINRICII RIES 



The quarry industry iu this region has not been specially 

 active during the past year, the quarries at Union Springs and 

 Seneca Falls having done little business, but the limestone quar- 

 ries at Waterloo are stated to have been in active operation most 

 of the time. 



The bed of slip clay located on the property of William Young 

 on the south edge of the city of Seneca Falls has, so far as I am 

 aware, never been mentioned in any previous report. But in 

 previous years some quantity of it has been dug and shipped to 

 stoneware potteries in Ohio, Tennessee, and West Virginia. 

 Mr Young contemplates resuming mining operations in the near 

 future. The large deposit of marl and clay underlying the 

 swamp at Alpine station still remains undeveloped, but it is 

 expected that a cement plant will be located at the locality in 

 the spring of 1903. Mr George Cook, of Newfield N. Y., contem- 

 plates building a second brick plant at that locality, which will 

 be 1 known as the Ithaca Red Brick & Tile Co. 



The brick works at Horseheads and the brick and terra cotta 

 works at Corning have continued in active operation. 



The two most important developments which were made in this 

 region during the past year are the establishment of and opera- 

 tion of the new Portland cement plant and a new salt works, 

 both located on the eastern shore of Cayuga lake. The Portland 

 cement plant is operated by the Cayuga Lake Cement Co., with 

 the general offices at Ithaca, and the works at Portland point, 

 6 miles north of Ithaca on Cayuga lake. The raw materials 

 used are a silicious Tully limestone and a calcareous Hamilton 

 shale, of which the analyses have been kindly furnished me by 

 Prof. R. C. Carpenter of Cornell University. 



Limestone 



Shale 



Silica 



Alumina 



Ferric oxid 



Lime 



Magnesia 



Loss on ignition 



undet. 



9.72 

 4.20 



.48 

 47.11 



.66 



53.46 

 20.28 

 6.72 

 6.66 

 3.82 

 8.18 



r!07 



