Vill CONTENTS. 
with Descriptions of new Genera, A. E. VeRR 411.—Notice of the Corals and 
Echinoderms collected by Prof. C. F. Hartt, at athe Abrolhos Reefs, Province of 
Bahia, Brazil, A. E. VeRRILL, 416.—Notice of - Collection of Echinoderms from 
La Paz, Lower California, with a Description of a new Genus of Starfishes, A. E. 
VERRILL, 417.—On the Families of the ota Anura, E. D. Cope: On the 
Spongiz Ciliate as Infusoria Flagellata, etc., H. James Citark: Remarks on the 
Geology of the valley of Mackenzie River, etc., F. B. Menx, 418. es oe Ceph- 
alopods of the Museum of Comparative Zoology, AupHevs Hyra 
Miscellaneous Scientifie Intelligence.-On convenient forms of Experiment with fluid 
jets, Francis H. Smrru, 419.—Resolution of the Sounding flame, F. H. Smiru, 
421 a to Prof. Smith’s paper, 422.—On a convenient form of Aspira- 
tor, ALBERT R. Leeps, 423.—-Height of Mt. Washington, 424. 
Obituary.—Samuel Luther Dana, 424. 
Miscellaneous Bibliography. oe a a Introduction to Practical Mechanics, Jonny 
TwispEN: Berghaus’s Chart of the World, 426.—Organic Philosophy, etc., 
F. 
Hues Donerty: Notes on the etane of Hawaiian Islands, with a history of 
their various eruptions, WM. T. BricHam: Transactions of the Chicago Academy 
of Sciences, 427. 
Proceedings of Societies, etc, 428.—Index, 429, 
€ 
Errata.—p. %, for Epwarp A. Cuasg, read Epwarp 0. Cuasz. 
Pe a, a MR EI Ee aS Te Retire ne Le we eee ra 
