560 The American Naturalist. [June, 
Prof. Alexander Agassiz, who accompanied the expedition. 
More recently Prof. G. Baur, of Clark University, has under- 
taken an exploration of the Galapagos, with the express object of 
making the fullest geological and biological researches. An expe- 
dition has been fitted out by Lieut. Peary, U.S.N., for the purpose 
of approaching as near to the North Pole as possible via Northern 
Greenland. He goes under the auspices of the Academy of 
Natural Sciences of Philadelphia, and is accompanied part of the 
way by Profs. Angelo Heilprin and Sharp, ofthat institution, and 
by Prof. Hoyt, of the Philadelphia High School. Mr. W. L. 
Abbott, of Philadelphia, recently returned from an extensive 
exploration of Central Africa, bringing with him several new 
vertebrates (including two antelopes) from Mount Kilimanjaro. 
He has recently returned, and will continue his researches. 
AT its last meeting the National Academy of Sciences elected 
_ two foreign associates: Prof. Karl Gegenbaur, of Heidelberg, and 
Dr. J. S. Stas, of Belgium. These gentlemen occupy the first rank 
in their respective pursuits, viz., comparative anatomy and chem- 
istry. Their election confers honor both upon them and upon 
the Academy. Two vacancies existed in the membership at the 
time of the last meeting, but the Academy did not see its way clear 
to fill them, although eligible candidates were not wanting. The 
deaths of Hilgard, Leidy, and Le Conte have caused vacancies 
which will render more probable several elections next year. 
Mosr of the Philadelphia members of the committee on recep- 
tion of the International Congress of Geologists of 1892, have 
resigned from that body as an expression of their dissatisfaction 
with the change of place of holding the congress from Philadel- _ 
phia to Washington, after the former had been adopted by the 
Bureau of the Congress. Prof. Leidy, who signed a protest 
against the change, has since died, and Prof. Heilprin, who 
did not protest, has since resigned. Prof. Lesley alone remains 
on the committee. 
THE new Scribner’s Century Dictionary has an especial value to 
scientific men from the care its. publishers have taken to represent 
fully the language of modern science. The editorship of Profs. oe 
Gill and Coues guarantees its excellence from the side of biology- 
