ISO INJURIOUS MANUFACTORIES. 



tide by which vapours very inconvenient to the neighbours, 

 or danger of fire or explofions are to be eftabliflied, it would 

 be wife, juft, and prudent, to lay down as a principle, that 

 they are not to be admitted into cities, or near dwellings, 

 without fpecial authority; and that, if perfons neglect to 

 comply with this indifpenfable condition, their manufactories 

 may be ordered to be removed without any indemnification. 

 Summary. It follows from our report, 1 ft, that catgut manufactories, 



Jayftalls, fteeping of hemp, and every eftablifhment in which 

 animal or vegetable matters are heaped together to putrify in, 

 large quantities, are injurious to health, and ought to be re- 

 mote from towns and every dwelling houfe: 2dly, that ma- 

 nufactories where difagreeable fmells are occafioned throqgh 

 the action of fire, as in the making of acids, Pruffian blue, 

 and fal ammoniac, are dangerous to the neighbours only from 

 want of due precautions, and that the care of government 

 (hould extend only to an active and enlightened fuperinlend- 

 ance, having for its objects the improvement of their proceffes 

 and of the management of the fire, and the maintenance of 

 cleanlinefs: 3dly, that it would be worthy a good and wife 

 government, to make regulations prohibiting the future efta- 

 blifhment of any manufacture, the vicinity of which is at- 

 tended with any eflfential inconvenience or danger, in towns 

 or near dwelling-houfes, without fpecial authority previoufly 

 obtained. In this clafs may be comprifed the manufactories 

 of poudrette, leather, and ftarch ; foundries, melting houfes 

 for tallow, (laughter houfes, rag warehoufes, manufactories 

 of Pruffian blue, varnifh, glue and fal ammoniac, potteries, 

 &c. 



Such are the conclufions which' we have the honour to lay 

 before the clafs,* and addrefled to government, with invita- 

 tion to make it the bale of its decifions. 



* Thefe conclufions were adopted by the Inftitute. 



Fdfti 



