AMERICAN CHEMICAL JOURNAL. | 
This Journal contains original articles by American and Foreign chemists ; 
reviews of works relating to chemical science; report progress in the various s 
departments of Chemistry; and items of eines ope < Chemists. Published 
in numbers of from 64 to 80 pages; six numbers forming a volume of from 400- 
500 pages. Each volume will be completed, as nearly as is consistent with the 
supply of material, btu a year. Subscription price for the volume $3.00; 
single numbers 50 cents. 
Volumes T, U, Ir and IV, 1879-82, are now complete. Price $3.00 each. 
_ Subscriptions and communications of all kinds should be addressed to Tra 
Remsen, Johns Hopkins University, Baltimore, Md. : 
Dlcwes 
AMERICAN JOURNAL OF MATH EMATICS | 
PURE AND APPLIED. 
"Published under the auspices of the Jouns Hopxiys UNIverstry. 
oh volumes of about 384 quarto pa; ees, smo gates four numbers issued quar- 
arly. Fifth volume published the present yea 
ts primary Dbject. is the publication of o eufnel vibe a ong os : aynonel 
ibliographies and ae expositions of gees seule tea be given 
Editor in chief, J SYLVESTER; Associate Editor ms charge, WintiaM E. 
Story; with the coberatin of SIMON wawosue of Washington, H. A. Newrox, 
of New se OWLAND, of Baltimore. 
60 5 volume; — numbers, $i. 50. * 
— 
“WILLIAM. B. STORY, | 
Hopkins Univ ais Baltimore, Md. 
* satacpion price, 
