Chemisch-pharmaceut. Botanik. — Horticultur u. Agricultur. 175 



et d'origine douteuses , le P. Coemansi, il est d'autant plus 

 interessant de le trouver represente' dans le Portlandien 

 moyen par une forme ä la fois incontestable comme attribution 

 et aussi nettement specialisee. R. Zeiller. 



THOUVENIN, M., Precis de microchimie vegetale. Paris 

 (0. Doin, editeur) 1904. 



Le but de ce petit precis est de donner sous une forme succincte, 

 les notions les plus essentielles de microchimie vegetale aux etudiants 

 des Universites, en tenant compte des procedes les plus recents. 



Les differents chapitres de ce precis sont consacres ä l'etude des 

 reactions microchimiques du protoplasme, du noyau, des membranes, des 

 mucilages, des gommes, des aldehydes, des amides, des Sucres, de 

 l'amidon, de Finuline, des matieres grasses, de Faleurone, des glucosides, 

 des oxymethylanthraquinones, des tannoides, des ferments solubles, des 

 alcaloi'des, des huiles essentielles, des resines et des sels. 



Suivent ensuite, d'abord un expose rapide des divers procedes de 

 fixation, d'inclusion et de coloration, puis des renseignements sur la 

 preparation des principaux reactifs colorants et fixateurs employes en 

 microchimie vegetale. Tison (Caen). 



GOSNELL, R. C, The Timber Industry of British 

 Columbia. (Bureau of Provincial Information. Bulletin 

 No. 15. 1903. p. 237 to 256. With 11 plates.) 



Timber is, next to minerals, the most important economic product 

 of British Columbia, and the Province is stated to possess the 

 greatest compact area of merchantable timber on the North American 

 continent. 



The distribution and uses of nine timber trees, species of Thuja, 

 Pinus, Picea, Tsuga, Quercus, Populus and Acer are described in detail, 

 together with short notes on other coniferous and on other deciduous 

 timber trees. 



The prospects for the future are discussed, bearing in mind the 

 scientific development of the main industry and also the important by- 

 products such as wood-pulp, turpentine, varnish, tannin, charcoal etc. 

 The advantages British Columbia owes to its geographical position 

 for reaching many of the large markets of the world are pointed out. 



Mechanical tests of the more important timbers are given together 

 with commercial statistics. W. G. Freeman. 



Green, A. 0., Tasmanian Timbers, their qualities and 

 uses. (Department of Lands and Surveys, Tasmania. 1903. 

 p. 1—63. Illustrated.) 



Tasmania possesses large forests, and the timber of many of 

 the trees is of considerable value. At present only a few are exported 

 to any considerable extent although Tasmania with its temperate 

 climate, reliable rainfall, land locked harbours and deep arms of the sea 

 running inland affords special facilities for the growth and export of 

 timber.. 



The pamphlet contains descriptions of the important timber trees, 

 with accounts of their habits and distribution, and the uses to which 

 their timber is adapted; the trees being grouped in natural Orders. 

 Eucalypts form a very large proportion of the trees of economic impor- 

 tance. Botanical descriptions and local names of the Eucalypti are added 

 by L. Rodway. The results of mechanical tests are given in a series 

 of tables. W. G. Freeman. 



