DONS. — 21 AVRIL-23 JUIN 1884. 
59 
Abella y Cesariego. — Informe acerca de los terremotos sentidos en Nueva- 
Vizcaya (Filippinas) en Julio, Agosto, etc., 1881, 343; — Apuntes fisicos y geolo- 
gicos tomados en el viaje de Nueva Vizcaya à Manila, 343. 
Salterain. — Ligera resena de los temblores de tierra occurridos en la isla de 
Cuba, 371. 
— Sociedad espanola de historia natural. Anales de la — -, 
t. XIII, Q° 1, 1884. 
États-Unis. Boston. Society of Natural history. Memoirs of 
the —, vol. m, n° 9, 1884. 
Scudder. — Two new and diverse types of carboniferous myriapods, 283. 
Cambridge. — Muséum of Comparative Zoology at Harvard Col- 
lège. Memoirs of the —, vol. X, no 1, septembre 1883. 
Agassiz. — Reports of the results of dredging in the gulfof Mexico (1877-78), etc., 
(Report on Ihe Echini). 
Science, vol. III, 62-70, avr.-juin 1884. 
J. James. — Two species of tertiary plants, 433. 
Davis. — Paleozoic high tides, 473. 
Powell. — On the state of the interior of the earth, 480. 
Riley. — The fnndaraental theory of dynamic geology, 511. 
Lester Ward. — Caulinites and Zamiostrobus, 532. 
Claypole. — Dalmanites in the lower carboniferous rocks, 563. 
E. A. Smith. — Cretaceous phosphates in Alabama, 586. 
Squier. — The faults of S. W. Virginia, 6 14. 
Cope. — Pleuracanthus and Didymodus, 645. 
Dawson. — Récent geol. observations iu the Ganadian N. W. Territory, 647. 
Dilier. — Volcanic sand w^hich fell at Unalashka Alaska, oct. 20, 1883, 651. 
— Newhaven. American Journal of Science, 3° sér., t. XXVII, 
n*'^ 161 et 162 ; mai-juin 1884. 
Rockwood. — Notes on american earthquakes, 358. 
Chamberlin. — Hillocks of angalar gravel and disturbed stratificaiion, 378. 
Hills. — Extinct glaciers of the S. Juan Mountains, Colorado, 391. 
Vanhise. — Secondary elargements of feldspath fragments in certain Kewee- 
nawan sandstones, 399. 
Marsh. — - Principal characters of american cretaceous Pterodactyls, 423. 
Scott. — Marsupial from the Colorado Miocène, 442. 
Hague and Iddings. — Volcanic Rocks of the Great Basin, 453. 
Wooster. — Transition from the Copper-bearing séries to the Potsdam, 463. 
Hills. — Kaolinite from Red Mountain, 472. 
Ringueberg. — A new Dinichthys from the Portage Group of Western New- 
York, 476. 
Dana. — Mineralogical Notes, 479. 
— New-York. American Muséum of Natural history. Bulletin 
otthe —, vol. I, n« 5, févr. 1884. 
