248 



THE FLOEAL WOELD AND GAEDEN GUIDE. 



which, in burning, emit a most delightful fragrance. Many of them furnish 

 food to Scandinavian peasants, and Chilian mountaineers. The nuts of 

 Araucaria imbricata are eaten by the Indians, roasted, boiled, and made 

 into bread ; the nuts of A. Brasiliensis are sold as an article of food in 

 Rio, and the resin of the tree is used as wax for candles. But here we 

 must hold, or we shall require the whole space of a number, and then find 

 we have but half told the story of the Pinetum. We have set before the 

 reader such particulars of general interest as were noted down during a 

 careful, and not wearisome, perusal of Mr. Gordon's book, which is much 

 more systematic in its contents, than our notes from it might make 

 appear. It is the work of a man of science, who practically understands 

 his subject, even to minutest details; its manner is as simple as the plan 

 of orderly treatment will allow, and to the clear and readable descriptions 

 of species and varieties, the author has added a copious index of 1,700 

 names, which, in itself, is a valuable catalogue of species and synonymes. 

 If the dates of introduction had been given, the work would, in our opinion, 

 have been greatly enhanced in interest; but, forgetting this omission, the 

 book commends itself as an able review of one of the most interesting 

 sections of the vegetable kingdom. 



TROTMAN'S ECONOMIC GAS STOVE. 



The subject of gas-heating being one of 

 great interest and importance, especially 

 to amateurs possessing but few plant 

 structures, we bare thought it advisable 

 to introduce to the notice of oiu' readers, 

 an invention which seems likely to realize 

 all that can be desired as a simple and 

 inexpensive means of heating where a 

 supply of gas can be obtained. It is 

 known as Trotman's gas stove, and was 

 exhibited at the last Chiswick Meeting of 

 the Horticultural Society. The stove 

 stands about 30 inches to the top of the 

 lid ; the diameter 9 inches. The centre to 

 within 6 inches of the top is hollow, so 

 that the flame from the burner is in the 

 centre of the water, thus economising the 

 heat. The fold air passes away by a pipe 

 throtigh the water, and afterwards can be 

 carried about the house as convenient, but 

 must not be carried horizontally, or there 

 will be a likelihood of a back draught. 

 The pipe produces a considerable amount 

 of heat, and is no more objectionable than 

 a common flue, hence it may be used to 

 heat the back wall, or run under a 

 stage. The heat from the stove itself is 

 the same as other hot-water apparatus. 

 The lid is perforated, and the moisture 

 thus obtained will counteract the dry heat 

 from the pipe. There is no escape of 

 f ml air whatever if properly set, which is 

 very simple. Those who used it last 

 winter, pronounce it safe and economical, 

 and most easily managed. Its simplicity 



is one great recommendation for its adop- 

 tion wherever gas is available, as it is 



the cheapest, cleanest, and least trouble- 

 some of any method of heating small 

 greenhouses. 



