VERY FINE CLOATH. -^35 



4. — Fourth state : Light wfiite, or very pale 

 greenish white mass, consisting of the silky 

 or fine fibrous salt, intermixed with flaky- 

 fragments of the yet undecompo^^ed schis- 

 tus. In two of the specimens where the 

 damp has operated, the efHorescent salt lies 

 closer, is more adherent to the schistus, 

 and is greener in some places like sulphate 

 of iron. The salt is very soluble in water, 

 and half the weight of the mineral in the 

 state No. 4-, is taken up by that fluid. 



XIV. 



Method of weaving Cloth of a surprizingly fine Qnalili/. By 

 Mr. William Neven.* 



JL HE inventor acquaints the secretary that he has discovered Very fine cloth 



an improvement in the art of weaving;, which certainly vvill ""^'^^ °/ ~^^ 

 ^ .... shoots in the 



turn out a great national advantage. Inch. 



By this improvement cotton, linen, and silk goods, can be 

 fla-ade much sooner and finer, than by any method yet disco- 

 vered. Upon this principle he ha'^ made a small piece of plain 

 silk cloth, from hard thrown <;i'k in the gum, that contains the 

 amazing quantity, of Qb,b'6Q meshes in one square inch, or 

 256 threads in ihe inch of the side, which is double the numbei- 

 in any cloth before made. 



It is impossible lor any reed-maker to make a reed half so fine 

 as ta weave such cloth upon the present principles of weaving; 

 and even if that could be done, no weaver could make use of 

 it : but by this method, he may weave, as fine ciolh in a twelve 

 hundred reed as by the present method in one of twenty-four 

 hundred, and with rather less thni more trouble. 



He sent specimens of both silk and cotton cloth, woven 

 upon this principle, and material advantage may be derived 

 from this plan in making cambrics, muslins, &c. 



The 



* Soc Arts, 1806. 



