56 DONS. — SÉANCE DU 6 NOVEMBRE 1899 



— Id. : The Giant Trilobite of Moose River Iron Mines, p. 63. — IX, 4. 1897-98 : 

 W. Bailey : Triassic rocks of Digby Basin, p. 356-360. 



Danemark. — Copenhague. Danmarks Geol. Undersogelse, 

 1898-99. 



E.-G. Skeat and V. Madsen : On Jurassic, Neocomian and Gault Boulders found 

 in Danemark, 213 p. 8 pi. 1 carte. — K. R0rdam : Kortbladene Helsingor og Hille- 

 r0d, 2 cartes au 1/100.000. — A. Jessen : Beskrivelse til Geologisk Kort over 

 Danmark (i Maklestok 1/100.000) de Kortbladene Skagen, Hirshals, Frederisksbavn, 

 Hjpring og Lokken, 368 p. Rés. fr., 7 cartes, 1 pi. — K. R0rdam : Beskrivehe 

 til Geologisk Kort over Danemark (i Maalestok 1/100.000) ; Kortbladene Kjo'benhavn 

 rg Roskilde, 107 p Rés. fr., 2 cartes, 5 pi. — N. Hartz og E. 0strup : Danske 

 Diatoméjord-Aflejringer og deres Diatoméer, 81 p. (Rés. fr.), 2 pi. — A. Grônwal, 

 J. Ravn, A. Hjorth et V. Ussing : Bidrag til Bornholms Geologi, 108 p. (Rés. fr.), 4 pi. 



— Meddelser om Gr0nland, 20-23, 1899. 



Espagne. — Madrid. An. Soc. Esp. de H. N.-S. II, VIII, 28, 1899. 



— Act. Soc. Esp. de H. N. 1899. 



Incas Mallada : Examen de algunas rocas cristalinas de la provincia deCordoba, 

 p. 147-154. — Navas: Una excursion al Montsaut notas geologicas, p. 169-177, av. pi. 



Etats-Unis. — Albany. New-York State Muséum. Arm. Rep. V, 

 2, 1899. 



John Clarke : The stratigraphie and faunal Relation of the Oneonta Sandstones 

 and shales to the Ithaca and Postage groupes in Central New- York, p. 27-82. — Ch.- 

 S. Prosser : The Classification and Distribution of the Hamilton and Chemung 

 séries of Central and Eastern New-York, p. 83-222. — Dana Luther: The strati- 

 graphie Position of the Postage Sandstones in the Naples Valley and the adjoin- 

 ting Région, p. 223-236. — Dana Luther : The économie geology of Onondaga 

 county, p. 237-304. — Irv. Bishop : The structural and économie geology of Erie 

 county, p. 305-392. — Heinrich Ries : Geology of Orange county, p. 392-476. — 

 Ch. Smith : Rep. on the Crystallins Rocks of N. Lawrence county, p. 477-498. — 

 J.-F. Kemp : Preliminary Rep. of the Geology of Essex county, p. 575-614. — H. 

 Cushing : Rep. on the Geology of Clinton county, p. 499-574. — Ch. Prosser et 

 Ed. Cumings : Section and thickness of the lower Silurian Formations on West 

 Canada creek and in the Mohawk Valley, p. 615-660 — R. Ruedemann : The Dis- 

 covery of a sessile Conularia, p. 699-728. — J. Clarke : On some Crustaceous from 

 the Chemung Group., p. 729-738. 



Boston. Mem. Soc. of Natural Hist. V, 4, 5. 



R. Tracy Jackson : Localized stages in development in plants and animais, 

 p. 89-153, pi. 16-25. — Ed.-C. Jeffrey: The development, structure, and afhnities 

 of the genus Equisetum, p. 155-190, pi. 26-30. 



Cambridge. Muséum of comparative Zool. at Harvard Collège. 

 XXXV, 12, 5 pi. 



— Proc. Am. Ac. Arts and Se. XXXIV, 8 20, Jv.-Mai 1899. 



F. Gulliver : Shoreline topography, p. 251-257. — R. Daly : A comparative study 



