Notices respecting New Books. 387 



tb trace those remoter circumstances in which the disease origi- 

 nates. 



In thehope of supplying this deficiency, Mr. M'William has 

 attempted to trace the disease to its remotest source, and inves- 

 tigate all the causes that may co-operate in bringing it to ma- 

 turity ; whence he deduces the means of preventing its attack, 

 arresting its progress, and remedying its effects. 



The author in following out these objects has produced a vo- 

 lume of considerable bulk ; which will be found to contain a 

 great deal of highly interesting and important matter, conveyed 

 in distinct and perspicuous language. In the extract from it, 

 which we gave in our last number, on the Fir Tree, our readers 

 have been already presented with a specimen of the work, to 

 which we beg to refer them for ample confirmation of its claims 

 on their attention. 



Theoretisch, practische Wasser, haukunst von C. T. von Wie- 

 hQ\Cmg, Munchen 1809-1817: — "Hydraulic Architecture 

 theoretical and practical, by C. F. de Wiebeking, Privy 

 Counsellor to H. M. the King of Bavaria, 4 vols. 4to, with 

 upwards of 150 large folio plans and maps. Munich 1809- 

 1817. 



The work on Hydraulic Architecture, by the Chevalier de 

 Wiebeking, in four quarto volumes, is generally considered as 

 one of the most complete and extensive treatises on this interest- 

 ing science. The fourth and last volume, which was published 

 in the course of last year, and has only lately reached this coun- 

 try, contains much highly interesting and valuable information, 

 respecting all the great works of Hydraulic Architecture, executed 

 in different parts of Europe, developing their principles, mode 

 of execution, advantages and defects ; and suggesting useful 

 ideas for their further improvement and conservation. Thus it 

 serves to the student, as well as to the experienced engineer, as 

 a uever-faiHng assistant, and as a valuable book of reference in 

 his pursuits and plans. 



The fourth volume chiefly contains supplementary matter to 

 the different divisions of the three former ones, and particularly 

 treats in several chapters on the Inland Navigation of Great Bri- 

 tain, enumerating the different canals in various parts of this 

 country ; and of the great bridges that have lately been con- 

 structed across the river Thames at London. The Chevalier's 

 observations on these subjects are very judicious, and exhibit 

 much mind. 



In speaking of the river Thames, M. de Wiebeking chiefly la- 

 ment's, that no proper means are used to promote the navigation 

 B b 2 and 



