RECENT PUBLICATIONS 
Koken, E. Geologische Beitrage aus Siidtirol. [Separat-Abdruck aus dem 
Neuen Jahrbuch fiir Mineralogie, Geologie, und Paldontologie. Jahrg. 1906. 
Bd. II. S. 1919 und Taf. I-III. Stuttgart, 190-.] 
Productus Purdoni im Perm von Kaschmir. [Separat-Abdruck aus dem 
Centralblatt fiir Mineralogie, Geologie, und Paldontologie. Jahrg. 1906. 
No. 5. Stuttgart, 1906.] 
—Kitmmet, H. B. Annual Report of the State Geologist for the Year 1905. 
[Geological Survey of New Jersey. Trenton, 1906.] 
—KusakaBeE, S. A Note on the Direction of Earthquake Motion. [Proceed- 
ings of the Tokyo Physico-Mathematical Society, Vol. III, No. 1. February, 
1906. | 
Frequency of After-Shocks and Space-Distribution of Seismic Waves. 
[Journal of the College of Science, Imperial University, Tokyo, Japan, Vol. 
XXI, Article 1. Tokyo, Japan, 1906.] 
—Kunz, G. F. The Production of Precious Stones in 1905. [Extract from 
Mineral Resources of the United States, Calendar Year 1905. U.S. Geo- 
logical Survey, Washington, 1906.] 
—LampF, F.G.S., F.R.S.C., L. M. On Amyzon brevipinne, Cope, from the 
Amyzon beds of the Southern Interior of British Columbia. [From the 
Transactions of the Royal Society of Canada. Second Series—1g06-1907. 
Volume XII, Section IV. Ottawa, 1906.] 
—Lane, A.C. Die Korngrésse der Auvergnosen. Stuttgart, 1906. 
Review of Dr. Heinrich Ries’s Economic Geology of the United States. 
[Reprinted from Science, N.S., Vol. XXIII, No. 580, pp. 225-27, February 9, 
1906. ] 
The Influence of Varying Degrees of Superfusion in Magmatic Differentia- 
tion. [Journal of Canadian Mining Institute. Part of Vol. IX.] 
The Interior of the Earth. [Reprinted from Science, N. S., Vol. XXIV, 
No. 613, pp. 404, 405, September 28, 1906.] 
The Possibility of Deep Cracks in the Earth. [Reprint from The Michi- 
gan Miner, May, 1906.] 
—Lawson, A. C. Preliminary Report of the State Earthquake Investigation 
Commission. Berkeley, Cal., May 31, 1906. 
The Copper Deposits of the Robinson Mining District, Nevada. [Uni- 
versity of California Publications, Bulletin of the Department .of Geology. 
Vol. IV, No. 14, pp. 287-357. Berkeley, May, 1906.] 
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