192 



two capital points which the learned authoress considers 

 to be new discoveries were pointed out, namely, the fixed 

 pitch of the consonant, and the duplex instrumentation of 

 the voice ; the mouth and the " vocal organs" commonly so- 

 called, being two entirely different and independent in- 

 struments acting in harmony, but the mouth being entirely 

 capable of speech after the destruction of the larynx and 

 cords. 



Prof. Frazer described by diagrams the phenomenon of 

 exfoliation in the syenite-like rocks of Gettysburg. A dis- 

 cussion ensued in which Dr. Konig expressed his dissent 

 from Naumann's views respecting the cause of granitic ex- 

 foliation beino; the sun's heat. Dr. Genth also called atten- 

 tion to the fact that southern boulders were evidently not 

 produced in the same way as northern boulders. 



The report of the late Treasurer of the Society as made 

 out by his administrator, was read by the Treasurer, Mr. 

 Price, and regularly referred for examination to the Finance 

 Committee. 



Pending nomination. No. 764 was read. 



On motion of Mr. E. K. Price, it was 



Besolved, That the Treasurer be directed to pay one half 

 the income received and to be received from the Michaux 

 Legacy, to the Treasurer of the Fairmount Park Commis- 

 sioners, for the Michaux Grove, &c , agreeably to arrange- 

 ment of March 18, 1870. 



The appointment of a Standing Committee of Botanists 

 on the purchase of trees for the Michaux Grove, in Fair- 

 mount Park, was moved by Mr. Price, and laid over by the 

 rules, to the next meeting. 



The Curators, on motion, were authorized to permit Mr. 

 Herbert Welsh to copy the portrait of "Washington, in pos- 

 session of the Society, under such regulations for its safety 

 as the Curators may provide. 



And the meeting Avas adjourned. 



