16 DONS. — DU 17 JUIN AU 4 NOVEMBRE 1889 



Dinosauria from the Cretaceous. — Id. : Discovery of Cretaceous Mammalia, 2 pi. 



— Reyes : Carboniferous Echinodermata of the Mississipi. — Genth : Contributions 

 to Mineralogy. — Beecher : Note on the fossil spider Arthrolycosa antiqua, of 

 Harger. — Hobbs : Paragenesis of AUanite and Epidote as rock-forming minerais. 



— Nason : New locality of the camptonite oi Hawes and Rosenbusch. — Mackin- 

 tosch : Notes on some native iron sulphates from Chili. — EIdridge ; Some sugges- 

 tions upon the method of grouping the formation of the middle Cretaceous and the 

 employment of an additional term in its nomenclature. — LangdOn : Some Florida 

 miocène. 



New- Jersey. — Geological survey of — . Carte géologique, 

 feuille no 20. 



New- York. — Transactions of the — Academy of sciences, 

 t. VIII, nos 1-4. 



— The 30 th annual report of the trustées of the Gopper Union, 

 29 mai 1889. 



— The American Muséum of natural history, 1888-89, vol. II, no 2. 



— Bulletin of the American Muséum of natural history. 



Whitfield : Observations on some imperfectly know^n fossils from the Calciferous 

 Sandrock of Lake Champlain and descriptions of several new forms. — Id. : Descrip- 

 tion of a new form of fossil Balanoid Cirripede, from the Marcellus shale of New- 

 York. — Id. : Note on the faunal resemblance between the cretaceous formations 

 of New- Jersey and those of the Gulf States. 



Salem. — Proceedings of the American Association for the 

 advancement of science held at Cleveland, 1888. 



Orton : The discovery of sporocarps in the Ohio Shale. — Id. : The new horizons 

 of oil and gaz in the Mississipi. — White : The cretaceous deposits of North America. 



— Leverett : On the occurrence of the fofest-bed beneath inti'a morainic-drift. — Hay : 

 Récent discoveries of rocksalt in Kansas. — Wanner : The discoveries of fossil tracks 

 in the triassic of York County. — Newberry : The oil-fields of Colorado. — Branner : 

 The âge and corrélation of mesozoic rocks of the Sergipe-Alagôas basin of Brazile. — 

 Id. : The âge of the crystalline rocks of Arkansas.— Id. : The Peridotite of Pike 

 County. — Hall : The distribution of the granités of the Northwestern States, and 

 their gênerai lithologie characters. — Mendenhall : On the intensity of earthquakes, 

 with approximate calculations of the energy involved. — James : On ancient channel 

 of the Ohio at Cincinnati. — Spencer : Notes on the origin and history of the Great 

 Lakes of North America. — Ward : Remarks on an undescribed vegetable organism 

 from the Fort-Union group of Montana. — Id. : The paléontologie history of the genus 

 Platanus. — Todd: Evidence that lake Cheyenne continued tillthe ice âge. — Id.,: 

 The terraces of the Missomù. — Winchell : Systematic results of a field study of 

 the Archaean rocks of the Northwest. — Williams : The use of fossils in determining 

 the âge of géologie terranes. — Knowlton : The fossil wood and lignites of Potomac 

 formation. — Wright : The glacial boundary in southeastern Dakota. — Winchell : 

 Some thoughts on eruptive Rocks with spécial référence to those of Minnesota. 



— Philadelphie. — Proceedings of the Academy of natural science 

 of Philadelphy. Part I, janvier, avril 1889. 



Eyerman : Notes on geology and mineralogy. — Leidy : Fossil vertébrales from 

 Florida, 



