SCHOOL OF FORESTRY IN THE ESCURIAL, ^ 



reducing plants to ashes, with a special regard to that of 

 ligiious plants, and the qualitive and quantitive deter- 

 mination of the fixed elements in the same. 7. General 

 analysis of the waters and the elemental constituents of 

 organic substances. 8. Application of chemistry to vegetable 

 physiology and to sylviculture, to the preservation of wood, 

 and to the carbonization of wood, and the determination 

 of its calorific potency. 9. Dosification or determination 

 of quantity of tannin in materials containing this. 



In the cabinet and laboratory of chemistry provided 

 for the instruction of the students in chemistry, there 

 is in the school an extensive and well -equipped 

 laboratory, with various furnaces, water-pipes, and four 

 tables covered with zinc. Crucibles, capsules, retorts, 

 mortars, retort stands, lamps of different kinds, and other 

 accessory utensils are there in no stinted numbers ; 

 and pneumatic troughs, water and mercurial glass jars of 

 different sizes, permit of the collecting and study of gases. 



A varied collection of reactives to facilitate analytical 

 experiments are contained in a case of great value, together 

 with the more indispensible apparatus, which, in virtue 

 of its small volume, is contained in the chest of Platner, 

 made with admirable perfection. 



Amongst other articles and apparatus deserving of special 

 notice may be mentioned eudiometers of Volta and of 

 Hitscherlich ; different delicate balances ; the apparatus of 

 Donovan for filtration without access of air; that of 

 Marguerite for the dosification of oxygen; that of Guy-Lussac 

 for the analysis of potash ; that of Pelouce for the analysis 

 of copper ; that of Mohr for the extraction of ether ; the 

 sulphi-hydrometer of Dupasquier; the saccahrometer of 

 Mitscherlich ; the apparatus of Bunsen and Bischoff for 

 spectral analysis ; and various others not less important for 

 the analysis of earths, of chlorine, of lead, and of other 

 bodies. 



Amongst the material pertaining to analytical chemistry 

 the school possesses the elements necessary for volumetric 



