RECENT PUBLICATIONS 381 
—Butts, C., DALE, T. N., RicHarpson, G. B., SHaw, E. W., DEUSSEN, A., 
AND BuRCHARD, E. F. Advance Chapter from Contributions to Economic 
Geology (Short Papers and Preliminary Reports), 1910. Part I, Metals 
and Non-Metals Except Fuels. Structural Materials. [U. S. Geologi- 
cal Survey Bulletin 470-G.. Washington, 1or1t.] 
—CamMERON, F.K. The Soil Solution, the Nutrient Medium for Plant Growth. 
[Easton, Pa., Chemical Publishing Co., rort.] 
—CARNEIRO, B. P., AND DE Sousa, JosE Ayres. Memorias e Projectos de 
Acudes. Commissao do Acuide de Quixadé. Commissao de Acudes 
e Irrigagao. [Ministerio da Viacao e Obras Publicas. Inspectoria de 
Obras Contra As Seccas. Publicagao n. 8. Serie II, H—Memorias de 
acudagem. Rio de Janeiro, roro.| 
—CIRKEL, Fritz. Chrysotile-Asbestos. Its Occurrence, Exploitation, Muill- 
ing, and Uses. [No. 69, Canada Department of Mines. Ottawa, 1910.] 
—Ctrark, A. H. The Systematic Position of the Crinoid Genus Marsupites. 
[No. 1845, from the Proceedings of the United States National Museum, 
Vol. XL, pp. 649-54. June 24, 1911. Washington: Government 
Printing Office. 
—CrarK, H. H., Roperts, W. D., Itstey, L. C., anp RANDOLPH, H. F. 
Electrical Accidents in Mines: Their Causes and Prevention. [U.S. 
Bureau of Mines. Miners’ Circular 5. Washington, rort.| 
—CLARKE, J. M. Observations on the Magdalen Islands. [From New York 
State Museum Bulletin 149, Seventh Report of the Director, toro. 
Albany: New York State Education Department, 1ort.] 
—CLEMENT, J. K., Apams, L. H., anp Haskins, C. N. Essential Factors in 
the Formation of Producer Gas. [Bulletin 7, Department of the Interior, 
Bureau of Mines. Washington, r1o1t.| 
—COcKAYNE, L. Report on the Dune-Areas of New Zealand, Their Geology, 
Botany, and Reclamation. [New Zealand Department of Lands. Well- 
ington, rort.| 
—Cracin, F. W. Paleontology of the Malone Jurassic Formation of Texas, 
with Stratigraphic Notes on Malone Mountain and the Surrounding 
Region near Sierra Blanca, Texas, by T. W. Stanton. [U.S. Geological 
Survey Bulletin 266. Washington, 1905.] 
—Craic, E. H. C., Wricut, W. B., AND BatrEy, E. B. The Geology of 
Colonsay and Oronsay with Part of the Ross of Mull. (Explanation of 
Sheet 35, with part of 27.) With Notes by C. T. Clough and J. S. Flett. 
Accompanied by Sheet 35, Geological Survey of Scotland. [Memoirs 
of the Geological Survey, Scotland. No. 35. Edinburgh, rortr.] 
—CRANDALL, RopEeric. Geographia, Geologia, Supprimento d’Agua, Trans- 
portes e Acudagem nos Estados Orientaes do Norte do Brazil, Ceara, 
Rio Grande do Norte, Parahyba. [Ministerio da Viacao e Obras Publicas. 
Inspectoria de Obras Contra As Seccas. Publicacgao n. 4. Serie I, D, E. 
Hydrologia, geologia, assumptos geraes. Rio de Janeiro, rg1o.] 
