728 
onus; by B. F. Lautenbach, M. D., Ph. D.” (165 Mss. pp. 
of text and tables.) Referred to the Secretaries. 
Mr. Blodgett exhibited and described a number of speci- 
mens of copper-silver ores from the mines of Huantajaya in 
Peru, on the borders of Bolivia, 8 miles back from the coast 
at Iquique, and 1° west of Potosi; 2560 feet above tide ; col- 
lected by, or under the direction of Governor Prado of Peru, 
and sent to Philadelphia, in pursuance of a plan for closer 
commercial intercourse between Peru and the United States. 
Mr. Blodget exhibited charts, showing: the situation of the 
mines; and also the positions in the interior where newly 
discovered valuable deposits of guano were now exploited 
for commerce. - 
Prof. Halderman read a paper for the Transactions, on 
aboriginal relics of great age found in 30 inches of earth, 
in the small cave near his house, at the base of Chicques 
rock, on the east bank of the Susquehanna river, above Co- 
lumbia, in Lancaster county, Pennsylvania; and exhibited 
a selection of them arranged classically on 14 cards, to be 
drawn and printed in illustration of his memoir. On mo- 
tion it was referred to a committee consisting of Dr. Daniel 
G. Brinton. Prof. Jos. Leidy and Prof. Lesley. 
Prof. Houston exhibited a microphone relay made by him- 
self and Prof. EK. Thomson of the Philadelphia High School, 
to be applied to Bell’s articulating telephone. 
Prof. Barker exhibited a suite of Mr. Edison’s instru- 
ments invented and made by him during the last year or 
two, and showed that there was nothing original in any of 
the inventions of Mr. Hughes (‘ Prof. Hughes ”) of London. 
Dr. Sadtler communicated a paper entitled “ Contribution 
No. XIV, from the Laboratory of the University of Pennsy1- 
vania, A new monochlordinitrophenol and an aniline deri- 
vative of the same. No. 2, On Beryllium borate,” by 
Edgar F. Smith. 
Pending nominations Nos. 857 to 869 and new nomination 
No. 870 were read. 
And the meeting was adjourned. 
