CONTENTS. 
CHEMISTRY, PHYSICS, AND THE ARTS. 
XIII. Strictures on Dr. E. D. Clark’s. book on the Gas Blow- 
pipe, by Professor Robert Hare, M. D. - 
Explanation of the plate - - 
XIV. Experimental inquiry into the Phenueal properties and 
economical and medicinal virtues of the common Hop, 
by Dr. A. W. Ives - - - 
XV. Account of new Eudiometers, &c. by Protector Robert 
Hare, M. D. - - - - 
Explanation of the plate - 
XVI. Analysis of the New-lersey Ores of Mine: ne M.P. 
Berthier, Engineer of the Royal Pons of ga (from 
the Ann. des “Mines) 
XVII. A new process for Nitrous aes ae ey! Hare 
XVII. Description of a differential Thermometer, by Pro- 
fessor W. Howard, M. D. - 
Heat in the rays of the Moon - 
XIX. Account of a new Infiammable Air ham, ke Profes- 
sor Jacob Green - 
XX. Account of an improvement in ne rie Lamp, by 
Dr. James Cutbush - 
XXI. Account of a Gelatinous Meteor, ive Rais Bike. Esq. 
XXII. On the crystallization of iia by Pipeeet Jacob 
Green - - - 
INTELLIGENCE AND MISCELLANIES. 
Foreign Literature and Scuence. 
Page. 
281 
298 . 
302 
312 
317 
Number of books in the German and Prussian libraries—Py- © 
roligneous acid ; confirmation of its powers—Botanic gar- 
dens in Austria—Manuscripts of Herculaneum—A new 
plant with febrifuge powers - - 
New works, &c. at Leipsic—Artificial substitute ioe the 
Lithographic stone—New mode of killing animals—Acad- 
emy of Cadiz—Terrible effects of lightning—Hot water in 
the streets of Paris - - - - 
Reduction or enlargement of the size of engravings—Steam 
navigation—Facilities of conveyance to and from London 
—Early discovery of the pyroligneous acid - 
Ancient copy of Homer’s [liad—Heat of a vacuum—Educa- 
tion in Africa : - - - - 
340 
