CONTENTS-JULY TO SEPTEMBER, 1828. 



Pag* 



An Account of some of the Steam-Boats navigating the Hudson 



River in the State of New York. In a Letter from Mr. Ren- 

 wick, Professor of Natural and Experimental Philosophy and 

 Chemistry in Columbia College, to Captain Edward Sabine, 



R. A., Secretary of the Royal Society 1 



Communication on the Structure and Economy of the Greenland 

 Whale, made at the Royal Institution of Great Britain. By J. 

 Harwood, M.D. F.R.S., &c. . . . .10 



On the Inland Navigation of the United States of America, 

 PartlL . . . . . .24 



On Malaria on Ship-board. By Dr. Mac Culloch . . 38 



Lineaments of Leanness. By William Wadd, Esq., F.L.S. . 76 



On the Curative Influence of the Southern Coast of England, 

 especially that of Hastings. By William Harwood, M.D. 

 reviewed . . . . , ,85 



On Ornamental Aviaries .• • • ,100 



Observations on the Force of our Ships of War , .108 



An Account of a New Genus of Plants called Diplogenea. By 

 John Lindley, Esq. F.R.S., &c. . . .121 



A Dissertation on the Nature and Properties of the Malvern 

 Waters, reviewed. By W. Addison, Surgeon . .123 



On Mr. Ivory's Investigations of the Velocity of Sound. By 



Mr. Henry Meikle . . . .124 



Description of a Regulating Valve for a Gas Establishment . 135 

 Transactions of the Horticultural Society. Vol. vii. Part II. . 138 



An Attempt to prove that Ava was the Ophir of Solomon. By 



John Ranking, Esq. . , . . .141 



On the Sap of the Rose Tree, Communicated by R. Addams, Esq. 147 



Statistical Notices suggested by the Actual State of the British 

 Empire, as exhibited in the last Population Census. By 

 Mr. Merritt . . . • • 150 



