— 217 — 



knowledge of the Vegetation of the Carboniferous Age, and the Further 

 advancement of the Study of the Subject. 



7) The Canadian Record of Science. 8°. Montreal 1890. [Jb. 

 1890. II. -459-.] 



Toi. IV. No. 4. — T. C. Mendenhall: The Relatious of Men of 

 Science to the General Public. — Wesley Mills : The Blood and Blood- 

 Vessels in Health and Disease. — B. J. Harrington : On Canadian Spes- 

 sartite and Mountain Cork. — C. H. Mc Leod and D. P. Penhallow : 

 Soil Temperatures. — D. P. Penhallow: Note on a Peculiar Growth in 

 a Black Walnut. — J. W. Dawson : On Burrows and Tracks of Inverte- 

 brate Animals and other Markings in Palaeozoic Rocks. — J. F. Hausen : 

 A New Canadian Platynus. 



No. 5. — J. M. Arms: Clay Concretions of the Connecticut River. 

 — J. W. Dawson and Penhallow: Note on Specimens of Fossil Wood 

 froin the Erian (Devonian) of New York and Kentucky. — J. T. Donald: 

 The Composition of the Ore used, and of the Pig Iron produced at the 

 Radnor Forges ; — Canadian Argol. — J. F. Hausen: Aids to th'e Study 

 of Canadian Coleoptera. — Gr. F. Matthew : On some Causes which may 

 have influenced the spread of the Cambrian Fauna. 



8) The Americ an Journal of Science. Edited by J. D. and E. S. 

 Dana. 8°. Newhaven, Conn., U. St. [Jb. 1891. I. -450-.] 



März 1891. No. 243. — M. CareyLea: Gold-colored Allotropic Sil- 

 ver. Part I. — J. S. Newberry : The Flora of the Great Falls Goal Field, 

 Montana. — J. W. Spencer: High Level Stores in the region of the 

 Great Lakes, and their Deformation. — H. A. Wheeler : Notes on Ferro- 

 Goslarite, a new Variety of Zinc Sulphate. — H. L. Wells : Composition 

 of Pollucite and its Occurrence at Hebron , Maine. — E. W. Morley : 

 The Volumetrie Composition of Water. — C. K. Wead : Intensity of Sound : 

 A Reply to a Critic. — H. A. Newton: The Fireball in Raphael's Ma- 

 donna di Foligno. 



April 1891. No. 244. — M. Carey Lea: Allotropic Silver. — R. S. 

 Tarr : Phenomenon of Rifting in Granite. — C. R. Keyes : Redrock Sand- 

 stone of Marion County, Iowa. — E. W. Morley : Volumetrie Composition 

 of Water. *— F. W. Mar: Certain points in the Estimation of Barium 

 as the Sulphate. — F. H. S. Bailey : Halotrichite or Feather Alum, from 

 Pitkin Co., Colorado. — R. E. Call: New Serpent from Iowa. — 0. C. 

 Farrington: Crystallized Azurite from Arizona. — 0. A. Derby: Occur- 

 rence of Xenotime as an accessory Element in Rocks; — Magnetite Ore 

 Districts of Jacupiranga and Ipanema , Säo Paulo , Brazil. — C. F. de 

 Landero: Pink Grossularite from Mexico. — 0. C. Marsh: Appendix 

 Restoration of Triceratops. — C. E. Beecher : Development of Brachiopoda. 



9) Proceedings of the Boston Society of Natural History 

 8°. Boston. [Jb. 1890. II. -460-.] 



Vol. XXIV. Part III u. IV. — Aug. F. Foerste: The paleontologi- 

 cal horizon of the limestone at Nahant, Mass. ; — Notes on Clinton group 



o* 



