416 Remarks oti Metallic Hot-houses. 



it to each longitudinal cord by other cords, which for greater 

 convenience are made up in httle balls {c c c c c c). These 

 cords are also of tarred rope-yarn. I understand from Mr. 

 Shennan, that he leaves his laths in the mats, which I should 

 think would not be very convenient for rolling up. When a 

 mat is finished, the cords are tied together at the top or finish- 

 ino- end ; the mat is then detached from the straw, and its 

 sides chopped straight with an axe. These mats are more 

 conveniently made by two men than by one man; and by 

 placing the frame upon a raised bank or bench, than by 

 placing it on the ground, and obliging the men to stoop. 

 When straw is used, that of rye is the best, and will last, 

 even with us, three years ; reeds last longer. 



Durino- our most severe frosts, I cover with straw mats 

 I'olled lengthways, i. e. from top to bottom, over the lights, 

 and with reed mats over these crossways. By this mode the 

 reeds lie in the direction of thatch on a house, so that the 

 water runs off them, and keeps the straw mats below and the 

 lio-hts perfectly dry. Further particulars are rendered unne- 

 cessary by Mr. Shennan's very distinct directions, and I have 

 only to add, that, if you choose, I will send you a reed mat 

 and a straw mat, as specimens. 



I remain, Sir, &c. 

 Copenhagen, March 28. 1828. P. Lindegaaro. 



We shall gladly receive specimen mats, which we shall de- 

 posit at Weir's Agricultural Implement Manufactory, Oxford 

 Street, for the inspection of gardeners and others, who may 

 wish to profit from M. Lindegaard's paper and that of Mr. 

 Shennan. In the mean time, straw mats may be seen in use 

 in Henderson's Nursery, Edgeware Road, and in the Clapton 

 Nursery. — Cond. 



Art. XII. Remarks on Metallic Hot-houses. 

 By Mr. George M'Leish. 



Sir, 

 You have repeatedly invited your readers to offer practical 

 remarks on any subject connected with gardening, and particu- 

 larly on new inventions or practices which have been noticed 

 or recommended in the Magazine. This, you have also i-e- 

 peatedly said, is the only way of arriving at truth, and the 

 nearest road to fix the principles, and establish the general 

 rules, of our art. Under this guarantee I now beg to send 



