DONS. il AVRIL-19 JUIN 1882. 
53 
S. H. Scudder. — Archipolypoda, a subordinal type of spined gmyriapods from 
the carboniferous formation. 
Cambridge. Muséum of comparative zoology atHarvard collège. Bul- 
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Mémoirs of the —, t. II, N° 2, part. II, 1882. 
Whitney. — The climatic changes of later geological times. 
Ithaca. Cornell university. Bulletin of the —, 1. 1, 1 et 2, 1874. 
0. A. Derby. — On the carboniferous brachiopoda of Itaituba, Rio Tapajos, 
Brazil. 
New-Haven. The american journal of science, t. XXIII, N»^ 137 et 
138, mai-juin 1882. 
Emerson. — Dykes of micaceous diabase penetrating the bed of zinc ore at 
Franklin furnace, 376. 
Iles. — Occurrence of raaltite in Colorado, 380. — Vanadium in the Leadville 
Ores, 381. 
White. — Conditions attending the geological descent of some freshwater gill- 
bearing mollusks, 382. 
J. M. Glarke. — New phyllopod crustaceans from the devonian of New- York, 
476. 
New- York. Lycseum of natural history. Annals of the — , t. T, III, 
IV, VI, VIII, 1824-1862. 
— New-York academy of sciences. Annals of the —, t. I, N*" 14. 
Id., t. II, N°^ 1 à 6, 1880-81. 
Is. C. Russel. — The geology of Hudson Gounty, New-Jersey, 27. 
H. S. Williams. — The life-history of Spirifer lœvis, Hall, 140. 
Britton. — On the geology of Richeraond county, 161. 
Grande-Bretagne. Londres. British association for the advan- 
cement of science. Report of the fifty-first meeting, held at York in 
august and september 1881. 
HuU. — On the laurentian beds of Donegal and of other parts of Ireland, 609. 
Kinahan. — On the laurentian rocks in Ireland, 609. 
Moore. — Life in irish and other laurentian rocks, 610. 
Hunt. — On the occurrence of granité in situ, about 20 miles S. W. of the 
Eddystone, 610. 
PreswitcTi. — Some observations on the causes of volcanic action, 610. 
Sollas. — The connection between the intrusion of volcanic rock and volcanic 
éruptions, 613. 
Lamplugh. — On the Bridlington and Dimlington glacial shellbeds, 616. 
Mortimer. — On sections of the drift obtained from the new drainage works of 
Driffield, 617. 
Cameron. — On the subsidences above the permian limestone between Hart- 
lepol and Ripon, 617. 
Kendall. — The glacial deposits of West Cumberland, 617. 
Seeley. — On Simosaurus pusillus {Fmo.^), a step in the évolution of the Plesio 
sauria, 618. On the restoration of the skeleton oi Archœopteryx, 618, 
