338 Italian and Polish Books. 



porches and verandas ; and the shade of trees, are recommended as the 

 ordinary means of producing a cool house. The extraordinary are external 

 walls with interstices of at least a foot in width, which may be filled with 

 snow and salt, or powdered ice and salt, or watered frequently. Through 

 such vacuities spiral tubes may be passed, with one opening to the open 

 air, and the others in the chamber to be cooled ; the effect of which will be 

 the entrance of a current of air, cooled in its passage through that part of 

 the pipe which is contained in the vacuity, as steam is cooled to water by 

 passing through the worm of a still. The use of pots of flowers in rooms 

 is approved of, because they produce oxygen gas, and absorb insalubrious 

 gases. The author regrets that modern architects in Italy have left off the 

 grave style prevalent in the time of Leo X., and adopted " a bizarre con- 

 struction, Sarrasin, French, and even Russian," disgraceful to his country. 

 To exclude excessive heat from the person, he recommends the thinnest 

 linen or cotton stuffs that can be procured, put on as loosely as possible. 



Elenco dcgli Albert pr'mcipali che possono servire alV Ornamento dei Giar- 

 dini, &c. Nomenclature of the principal Trees and Shrubs used in 

 Ornamental Gardens, with Notices of their Culture. Turin. 8vo. 



In his introduction the author endeavours to prove that Italy was the 

 first to display the irregular or English style of gardening (see Encyc. of 

 Gard., § 78.), and the advantages to public morals and taste that would 

 attend a more general cultivation of gardens among all classes of society. 

 To facilitate this cultivation is the grand object of his work. 



Bonafous, M. Mathietl, Director of the Experimental Garden of the Royal 



, and Central Agricultural Society of Turin : Osservazioni ed Esperienze 



Agrarie. Observations and Experiments in Agriculture. Turin. 8vo. 



After some remarks on the utility of experimental farms, follow some 

 observations on different varieties of wheat ; on the hill or dry rice of 

 China ; on the potato ; and the Jerusalem artichoke. The chief obstacle to 

 the culture of the potato in Piedmont is the necessity of cooking it, fuel 

 being there extremely dear. 



Sette, Vincent: Memoria storico-naturale sull' Arrossimento, &c. Notice 

 respecting the Red Colour which appeared on different kinds of Food in 

 1819, in the province of Padua. Venice. 8vo, pp.65. 



The heat and moisture of the summer of 1819 was favourable to the 

 growth of i?yssus 6otryoides, which appeared on bread, meat, and especially 

 on dough, paste, and pastry. 



Lomeni, Dr. Ignace, and G. Silvestri: Amministrazione economica della 

 Foglia de' Gelsi nella Coltivazione de' Bachi da Seta. On the Econo- 

 mical Application of Mulberry Leaves in rearing the Silk Worm. Milan. 

 8vo, pp. 96. 

 An ounce of the eggs of the insects will consume 1589 French pounds of 



leaves, and produce 151 lbs. 4 oz. of cocoons ; that is, about 13 lbs. of leaves 



will give about 1 lb. of raw silk. 



Poland. 



Schubert, M., C.M.H.S., Professor of Botany and Director of the Botanic 

 Garden of the University of Warsaw : Spis Roslin Ogrodu Botanicznego 

 Krolewskiego-Warszawskiego Uniwersytetu. Catalogue of Plants in the 

 Botanic Garden of the University of Warsaw. Warsaw. 8vo, pp. 580. 

 2 pi. 



The first edition of this work, in 1820, contained 5000 species; the pre- 

 sent, which is dated 1824, contains about 10,000. The scientific name, 



