REPORTS OF THE GEOLOGICAL SURVEY OF ARKANSAS. 



John C. Branner, State Geologist. 



An act of the legislature of Arkansas directs that the reports of the State 

 Geological Survey shall be sold by the Secretary of State at the cost of printing 

 and binding. The Reports issued, and their prices by mail are as follows: 



ANNUAL REPORT FOR 1888. 



Vol. I. On the gold and silver mines, and briefly on nickel, antimony, manga- 

 nese and iron in western central Arkansas. Price $1.00. 

 Vol. II. On the general mesozoic geology, chalk, greensands, gypsum, salines, 



timber, and soils of southwestern Arkansas. Price $1.00. 

 Vol. III. On the coal of the state, its distribution, thickness, characteristics, 

 analyses and calorific tests. Price 75 cents. 



■ Other volumes will soon be issued. 

 Address, Hon. B. CHISM, Secretary of State, Little Rock, Ark; 



BECKER BROTHERS, 

 No. 6 Murray Street, New York, 



Manufacturers of Balances and Weights of Precision for Chem- 

 ists, Assayers, Jewelers, Druggists, and in general for every use 

 where accuracy is required. 



JOHNS HOPKINS UNIVERSITY. 



BALTIMOEE. 



I. American Journal of Mathematics. S. Newcomb, Editor, and T. Craig, 



Associate Editor. Quarterly. 4to. Volume XII in progress. $5 per 

 volume. 



II. American Chemical Journal. — I. Eemsbn, Editor. 8 Nos. yearly. 8vo. 



Volume XI in progress. $4 per volume. 

 HI. American Journal of Philology. — B. L. Gildersleeve, Editor. Quar- 

 terly. 8vo. Volume X in progress. $3 per volume. 



IV. Studies from the Biological Laboratory. — Including the Chesapeake 

 . Zoological Laboratory. H. N. Martin, Editor, and W. K. Brooks, Asso- 

 ciate Editor. 8vo. Volume IV in progress. $5 per volume. 



V. Studies in Historical and Political Science. — H. B. Adams, Editor. 



Monthly. 8vo. Volume VII in progress. $3 per volume. 



VI. Johns Hopkins University Circulars. — Containing reports of scientific 



and literary work in progress in Baltimore. 4to. Vol. IX in progress.. 

 $1 per year. 



VII. Annual Report. — Presented by the President to the Board of Trustees* 

 reviewing the operations of the University during the past academic year. 



VII. Annual Register. — Giving the list of officers and students, and stating 

 the regulations, etc., of the University. Published at the close of the Aca- 

 demic year. 



Rowland's Photograph of the Normal Solar Spectrum. New edition now 



ready. $20 for set of ten plates, mounted. 

 Observations on the Embryology of Insects and Arachnids. By Adam 



T. Bruce. 46 pp. and 7 plates. $3.00, cloth. 

 Selected Morphological Monographs. "W. K. Brooks, Editor.- Vol. I. 370> 



pp. and 51 plates. 4to. $7.50, cloth. 

 The Development and Propagation of the Oyster in Maryland. By "W.. 



K. Brooks. 193 pp. 4to; 13 plates and 3 maps. $5.00, cloth. 

 On the Mechanical Equivalent of Heat. By H. A. Rowland. 127 pp» 



8vo. $1.50. 



A full list of publications will be sent on application. 



Communications in respect to exchanges and remittances may be 

 sent to the Johns Hopkins University (Publication Agency), Baltimore, 

 Maryland. 



