PROCEEDINGS 



"V^ , C^ OF THE 



AMERICAN PHILOSOPHICAL SOCIETY, 



RELD AT PniLADELPIIIA, FOE PROMOTING USEFUL KNOWLEDGE. 



Vol. XXVI. July to December, 1889. No. 130. 



TABLE OF CONTENTS. page. 



The Holiday Customs of Ireland. By James Mooney 377 



Ou the Inclinations of the Asteroids. By Daniel Kirkwood 428 



A Review of the North American Species of Hippotherium. By 



E. D. Cope {with threeplates) 429 



An Account of the Congo Independent State. By Henry Phillips, 



Jr. [with a map and cuts) , 459 



Some Thoughts on the Sun and Cross Symbols. By Richard Vaux. 476 



Stated Meeting, September 6, 1S89 482 



Stated Meeting, September 20, 1889 488 



Stated Meeting, October 4, 1889 489 



Obituary Notice of Caspar Wister, M. D. By Craig Biddle 492 



An Outline of tlie Philosophy of Evolution. By E. D. Cope 495 



The Ethnologic Affinities of the Ancient Etruscans. By Daniel G. 



Brinton 506 



Stated Meeting, October 18, 1889 527 



Stated Meeting, November 1, 1889 531 



The Phylogeny of the Sweat-Glands. By John A. Ryder. 534 



Proofs of the Eftects of Habitual Use in the Modification of Animal 



Organisms. By John A. Ryder {with two cuts) 541 



A Physiological Theory of the Calcification of the Skeleton. By 



John A. Ryder 550 



Ou the Genus Nyctinomus and Description of Two New Species. 



By Harrison Allen , 558 



Stated Meeting, November 15, 1889 564 



Celebration of the One Hundredth Anniversary of the Society's 



First Meeting in its present Hall 566 



Stated Meeting, December 6, 1889 566 



Stated Meeting, December 20, 1889 569 



List of Deliciencies in the Library of the American Philosophical 



Society 572 



Index to Vol. XXVI 577 



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Published for the American Philosophical Society 



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