On drying Articles of Manufacture, <^c. 225 



geometry of crystals, we shall find the most convincing proofs 

 that the zoysite should be joined to the epidote, like the 

 mineral of Norway, which a deceitful indication of its cha- 

 racters had made to be placed in a particular sj)ecies under 

 the names of arendalite and akanticonc. 



XLVr. On drying Articles of Manufacture, and heating 

 Buildings, hij Steam, By R. Buchannan, Esq,y Civil 

 Engineer, Glasgow. 



To Mr. Tillocfu 



SLRf 



JVxANY additional facts with regard to heating by steam 

 have lately been ascertained in this neighbourhood, and its 

 application to various processes in manufactures continues 

 to increase. Mr. Richard Gillespie is highly pleased with 

 its effects upon copper-plate callica-printing at his works, 

 as also for heating his calenders* For this last purpose, and 

 to warm his warehouse and counting-house, the steam is 

 conve}Td to a distance of above ninety-three yards. 



Steam was, I believe, tried many years ago at Leeds, 

 for drying goods, as a substitute for stoves ; but for some 

 reason, of which I am ignorant, was abandoned. Mr. 

 Lounds, at Paisley, however, has for a considerable time 

 used it with gieat success in drying fine muslins. Messrs. 

 Leys, Mason and Co. now also use it at their bleaching 

 works, at Aberdeen. 



Some kinds of muslins have for several years been dried 

 by being rolled round cylinders of tin plate filled with steam, 

 but I do not here allude to that mode. 



For drying of dyed yarn and pullicates, (a kind of co- 

 loured chequed cotton handkerchiefs,) a higher temperature 

 than for fine muslin is required. I am glad, however, to 

 Lave it in my power to say, that Messrs. Muir, Brown, 

 and Co., at their dyeing and bleaching works here, have 

 found steam to answer those purposes much better than the 

 usual mode by stoves. Mr. Muir informs me, that, al- 

 though they formerly gave out their pullicates tol)e bleached 



Vol. 30. No. 119. v%// isoe. P " to 



