McGuier.] 398 [April 21, 



ives than those of Mr. Hartnack or any other optician ; his 

 objective No. 7, jmce $20, is unquestionably better than 

 Hartnack's No. 9 or 10, price |45 and $60. It i^ossesses a 

 higher amplifying jiower, has more light and a greater focal 

 distance, and is excellent in every respect. Mr. Max Schultze, 

 the editor of the Microscopical Archives of Bonn, deg^ares 

 that Gundlach's No. 8, price $40, surpasses Hartnack's No. 

 14, jjrice 



April 21, 1869. 



Vice President Dr. C. T. Jackson in the chair. Forty-five 

 members present. 



The Secretary read the following extracts from a letter 

 addressed to Dr. S. Kneeland by Mr. Henry McGuier, con- 

 cerning the antiquity of man as shown by excavations made 

 at the High Rock Spring in Saratoga Springs, New York : — 



I have noticed in the accounts of the proceedings of the College 

 of Scientists at its session at Chicago, in August last, while consider- 

 ing the subject of "The Antiquity of Man "upon the American 

 Continent, that reference was made to the developments during the 

 excavation at the " High Rock Spring" at this point, and that the 

 same account ajjpeared in the "Annual of Scientific Discovery " for 

 1869. 



From what I am able to gather from both of the above named 

 sources, there does not appear to be that clear comprehension of all 

 the facts presented during the aforesaid excavation, so necessary to a 

 proper appreciation of the value of the evidences thus afforded of the 

 antiquity of man at this point. In all probability the error is one of 

 my own; and desiring to be set right upon the record, permit me to 

 say that in all probability the failure to comprehend all the essential 

 facts in the case has grown out of the inapposite use of a metaphor 

 in a little work written by myself for the jjroprietors of the High 

 Rock Spring. 



Presuming upon your indulgence, I propose to give you a statement 



