General Notices, 



323 



^ 



+3 



\ 



his vineyard, his mode of managing 

 it, and the particular advantages he 

 derives from this instrument. — Cond, 



The common Bramble of our Hedges 

 (i?ubus fruticosus), and, doubtless, 

 all the numerous varieties of it, are 

 found to be as effective in tanning 

 leather as the oak bark. That the 

 genus i?ubus contained a good deal 

 of the tannin principle, has long 

 been known ; but it is only lately 

 that this knowledge has been turned 

 to any practical purpose. A patent 

 has been taken out for its use. 



A new Portable Flour-Mill has 

 been invented, entitled HeberCs Do- 

 mestic Flour-malcer, which, for sim- 

 plicity, durability, and for not being 

 liable to go out of repair, appears far 

 to surpass every thing of the kind 

 that has hitherto been made public. 

 For small farmers, for market-gar- 

 deners who grow a little wheat, and 

 for emigrants, it will be invaluable. 

 We have seen it at 20. Paternoster 

 Row, London, and had some wheat 

 ground in it. A description of this 

 machine, accompanied by an engrav- 

 ing, is given in the Mechanic's Ma- 

 gazine for May the 7th, which may 

 be purchased for 3d. by any reader 

 who wishes for farther information. 



Glass Tubes, instead of Cast-iron 

 oties, have been used for circulating hot 

 water in green-houses at Vienna. The 

 tubes are about 3 in. in diameter, and 

 3 ft. long ; and the glass, which is of 

 the quality of British crown glass, 

 is a quarter of an inch thick: the 

 tubes are joined by bands of brass 

 and cement. Their appearance is 

 most elegant J and, if not broken by 

 accident, there can be no doubt of 

 their durability. Our correspondent, 

 M. Charles Eauch, has sent us a de- 

 sign and description of a house heated 

 in this manner, which we intend to 

 publish in our next Number. 



Nurserymen who are desirous of 

 extending their connexions on the 

 Continent, may now go from London 

 Bridge to Frankfort on the Main, by 

 steam and track-boats, in a week's 

 time, and at an expense, every thing 

 whatever included, under 10/. A cor- 

 respondent, who has just been there and returned, states that the waiters and 

 others speak English at every inn that he had occasion to stop at, except at 

 one inn at Dusseldorf; so that there can be no difficulty in point of language. 



