208 Nezo Publications. 



its whole course, and aflPording, at everj' point below the falls of St An- 

 thony (which are 2250 miles from the Gulf of Mexico), a sufficient depth 

 of water for vessels of the largest size." 



The steam navigation of America seems to have occupied a 

 considerable share of the author's attention, and he accordingly 

 devotes a long chapter to that subject, in which there is much 

 that has not before, so far as we know, been published. 



The American canals, roads, bridges, and railways are am- 

 ply described ; in the subject of road-making and water-works 

 we meet with much interesting information; and, when treat- 

 ing of lighthouses, a very important department of civil en- 

 gineering, Mr Stevenson remarks — 



'^ The fact of a lighthouse system having been extended to the remot- 

 est corners of so extensive a coast, under circumstances so inauspicious 

 and unfavourable, is what could hardly have been looked for, and is cer- 

 tainly highly creditable to the government of the United States and to 

 the officers of the Lighthouse Establishment. Even the most superficial 

 observer cannot fail to discover that there is a striking contrast between 

 the regulation of that establishment and the efficient and admirable sys- 

 tems pursued by the Lighthouse Boards of Great Britain and France ; but 

 a candid enquirer will rather be disposed to admire the activity and zeal 

 which have extended the benefit of lighthouses to remote and unhospi- 

 table regions, of difficult access, than to wonder at the defects of the sys- 

 tem which has been established for the purpose of carrying that import- 

 ant object into effect." 



The volume concludes with a chapter on house-moving, but 

 for the details of this curious engineering operation, we must 

 refer to the work itself. 



2. Memoirs of the Wernerian Natural History Societi/y for the years 1831-37. 

 Vol. VII. With thirty-fire coloured Geological Sections, and a coloured Geo- 

 logical Map ; and sixty-seven Illustrative Figures of Fishes. 8vo. Pp. 550. 

 1838. Black & Co., Edinburgh ; and Longman & Co., London. 



/ 

 Tins richly illustrated and valuable volume, contains an account of the 

 geology of the county of Edinburgh, also of the counties of East and 

 West Lothian ; and an ample natural history of the more] interesting 

 fishes of Scotland. It will serve as a very useful geological guide to 

 travellers who may visit the middle district of Scotland with the view of 

 studying our Neptunian and Plutonian transition and secondary rocks ; 

 and those ichthyologists who take an interest in the natural and econo- 

 mical history of British fishes, will have evcrv reason to be satisfied with 

 the store of useful and accurate infonnation which this volume afibrds. 



