Recent Puhlications. 19H 
IV. E.vcerpts and Individual Publications. 
Papers and notes on the genesis and matrix of the diamond by the 
late Henry Carvill Lewis, edited by T. G. Bouney. xviand72pp: 2 pis.: 
Longmans, Green & Co., New York, 1S^97. 
Abraham Gesner, a review of his scientific work, G. F. Matthew. 
Nat. Hist. Soc. of New Brunswick, Bull. 15, pp. 1 48, 2 maps, 1897. 
On the fossil phyllopod genera, Dipeltis and Protocaris, of the family 
Apodidaj, Charles Schuchert. Proc. U. S. Nat. Mus., vol. 19, pp. 671- 
676, pi. 58, 1897. 
Relations of the Wisconsin and Kansan drift sheets in central Iowa 
and related phenomena. A dissertation presented to the faculty of arts, 
literature and science of the University of Chicago in candidacy for the 
degree of Doctor of Philosophy. By H. Fqster Bain. Pp. 5-52, 2 maps: 
The University of Chicago Press, 1897. 
The clays and clay-working industry of Colorada, Heinrich Ries 
Trans. Araer. Inst. Mining Eng., Lake Superior meeting, July, 1897: 5 
pp. 
The Fuller's earth of South Dakota, Heinrich Ries. Ibid.; 3 pp. . 
Gold deposits of Georgia. S. W. McCallie. Read before the Inter- 
national Gold Mining convention at Denver, July 8,1897; 17 pp.. 1 map. 
Atlanta, 1897. 
Description of an extinct PaUeozoic insect, and a review of the fauna 
with which it occurrs, G. F. Matthe^v. Nat. Hist. Soc. of New Bruns- 
wick, Bull. 15, pp. 49-60, pis. 1-2, 1897. 
The stone industry in 1896, W. C Day. U. S. Geol. Survey, 18th 
Ann. Rept., pt. 5, pp. 1-126, 1897. 
A syllabus of physical geography, C. W- Hall and W. F. Knnze. 55 
pp., Minneapolis. The University Book Store, 1897. 
President's address to the geological section of the British A. A. Sci., 
1897, (Ancient Rocks of Canada), G. M. Dawson. 1.3 pp.; Toronto, 1897. 
Ice-jams and what they accomplish, M. A. Veeder. 8 pp.: read be- 
fore the A. A. A. S., Aug. 13. 1897. 
A catalogue of minerals alphabetically arranged, with their chemical 
composition and synonyms, A. H. Chester, 4th ed., 56 pp.; New York, 
John Wiley and Sons, 1897. 
V. PfoceedinfjN of Hcieatific Ltiboratorioi, etc. 
Kansas Univ. Quarterly, ser. A, vol. 6, no. 2, Ai)ril, 1897, Brachy- 
saurus, a new genus of mosasaurs, S. W. Williston: On the extremities 
of Tylosaurus, S. W. Williston. 
Field Columbian Museum, jjub. 18, geol. ser. vol. 1., no. 2, pp. 67- 
120, pis. 7-18, April, 1897. Observations on Popocatapetl and Ixtacci- 
huatl, with a review of the geographic and geologic features of the 
mountains, O. C. Farrington. 
