EXPLANATION OF THE PLATES. 377 



The Juno steam vessel with a pair of engines of 260 horses' power, stationed 

 between London and Cork, belonging to the St. George Steam Packet Company. 



The Vulture steam vessel with a pair of engines of 260 horses' power, stationed 

 between London and Cork, belonging to the St. George Steam Packet Company. 



The Tiger steam vessel with a pair of engines of 300 horses' power, stationed 

 between Hull and Hamburgh, belonging to the St. George Steam Packet Company. 



The pyilberforce steam vessel with engines of 300 horses' power, stationed between 

 London and Hull, belonging to the Humber Union Steam Company. Engravings of 

 the engines of this vessel are given in this work. 



The Kilkenny steam vessel with a pair of engines of 300 horses' power, stationed 

 between London and Waterford, belonging to the Waterford Commercial Steam Navi- 

 gation Company. 



The Windermere steam packet with a pair of engines of 60 horses' power, stationed 

 between Liverpool and Ulverstone, belonging to James Winder, Esq., of Liverpool. 



The Albatross steam packet with a pair of engines of 70 horses' power, stationed 

 between Hull and Yarmouth, belonging to Messrs. Boardman and Harmer, of Nor- 

 wich, and others. 



In addition to the engines above mentioned, a magnificent pair of engines of 500 

 horses' power, on board the British Queen steam ship of 1863 tons, will be, in the 

 course of a short time, in operation between Great Britain and the United States. 



And another pair of engines of 500 horses' power are making for the President, 

 another vessel building for the British and American Steam Navigation Company, of 

 2028 tons, being also for navigation between Great Britain and the United States. 



A pair of engines of 220 horses' power are also now making for the Honourable 

 the East India Company. 



In addition to the above, a considerable number of land engines are in satisfactory 

 operation with Mr. Hall's improvements, but it is not necessary to particularise them. 



The great importance of Mr. Hall's improvements to steam navigation and to land 

 engines, where water containing saline and other extraneous matters only can be pro- 

 cured for the condensation of the steam used in working engines, is strongly illustrated 

 by extensive documentary evidence, corroborating the advantages that have been 

 stated. 



For graphical explanation, see Plates XLIX. and L. 



3-D 

 O 



