Bibliographical Notices. 255 



Not a single beetle have I seen since quitting Pernambuco ; the 

 country is too arid and barren for them. 



I much regret that the few instruments which I wrote about some 

 months ago did not arrive before I left Pernambuco, especially the 

 Sympiesometer. It is always useful and interesting to ascertain the 

 height of mountains in little-known localities, and I hope to find 

 them on my return to that country. The thermometer here, at this 

 time, never stands under 86°, and often so high as 93° at noon, but 

 during the night it falls about 10°, so that the mornings and eve- 

 nings are delightfully cool. 



There is a little, and but a very little, cotton cultivated between this 

 place and Aracaty ; most of the country people being engaged in 

 rearing cattle. The cotton is more grown further up, along the base 

 of the mountains. 



[A subsequent letter from Mr. Gardner will be given in our next 

 Number. — Edit. 



BIBLIOGRAPHICAL NOTICES. 



Synopsis Flora Helveticce ; Auctore J. Gaudin ; Opus posthumum 

 continuatum et editum a J. P. Monnard, Turici, 1836. 24mo. 



The * Flora Helvetica' of Gaudin, which extends to seven octavo 

 volumes, is too well known and appreciated to require any praise 

 from us, but we believe that this little work has not attracted any 

 attention in Britain. It stands in the same relation to the ' Fl. Helv.' 

 that Smith's ' Compendium' does to his ' Flora,' except that it enters 

 more into detail. Generic and specific descriptions of 2313 Swiss 

 flowering plants are given, and generally a few observations in ad- 

 dition : the arrangement is Linnsean, and we can strongly recom- 

 mend the book to botanists intending to visit Switzerland or re- 

 quiring short descriptions of the plants of that country. 



Flora Cestrica ; or an Attempt to enumerate and describe the Flower- 

 ing and Filicoid Plants of Chester County, in the State of Pennsyl- 

 vania ; with brief Notices of their Properties and Uses in Medicine, 

 Domestic and Rural GEconomy, and the Arts. By William Darling- 

 ton, M.D., &c. 



Botany is indeed making rapid progress in the United States. 

 Practical and experienced botanists are now resident in the Northern, 

 the Middle, and Southern States, busily engaged in investigating the 

 riches of the vegetable kingdom in their respective districts, and 

 communicating to each other and to foreigners the well-dried spe- 



