VI ADVERTISEMENT. 



II. A form of steam journal for keeping a proper record of the 

 operations of the engines in all steam vessels, by Lieut. BALDOCK, R.N. 



III. On the motion of steam vessels and the principles of paddle 

 wheels, by Mr. P. W. BARLOW. 



IV. Time and traverse table for ascertaining the effects obtained 

 with a steam vessel upon an oblique course assisted with canvas, com- 

 pared with the same vessel upon a direct course without canvas, and 

 with a diminished velocity, by Captain OLIVER, R.N. 



V. Memoir of Her Majesty's steam ship the ' Medea,' by Lieutenant 

 BALDOCK, R.N. 



VI. On the present state of steam navigation in the United States, 

 by Professor RENWICK, of Columbia College, New York. 



VII. Theory of the motion and action of paddle wheels, with a 

 comparison of the principal inventions that have appeared for the pro- 

 pelling of steam vessels, by Mr. MORNAY. 



VIII. On the indicator, with practical illustrations of its nature and 

 use, by Mr. GLYNN. 



IX. Account of Mr. HOWARD'S new principle of vaporization. 



X. On the general theory of the steam engine, in which the theory of 

 the crank, the transmission of effect through the boiler and cylinder, 

 the general principles of action, the theory of paddle wheels, and the 

 nature of the resistance of fluids, are succinctly treated. 



