22G farmers' and mechanics' journal. 



it, tha whole of these processes must be twice or thrice repeated ; 

 a»)d they are then left to dry. 



When the cord is sutiiciently dry, it is known by its not running 

 up when a peg is taken out, and remaining stiff and straight, in- 

 stead of flagging. If dry enough, they are w^el! oiled with good 

 olive-oil, and coiled up into rings for sale. They become better 

 by being kept some time. 



To make the fourtli strings for violins, or any other sized cords, 

 intended to be covered with metal-wire, the process is so well 

 known, that it need not be here described. 



The whole success of these operations depends principally oiv 

 the ability and experience of the workmen in managing tlie diffe- 

 rent washings, stretchings and twistings, attd in a judicious use of 

 the sulj)hur. When the cord is too much sulphured, it readily 

 snaps ; and, on the contrary, when it is not enough so, it stretches 

 too much, and never keeps in tune. [Diet. Technologiqut, 



On the .Application of Larch Bark to anszver all lie purposes of Cak 

 Bark^ in Tanning Leather. By Thomas Whi;e, Esq., of iVoud- 

 lands, Durham. 



[The Larch here recommended, is the European species, but if 

 the American species, Larix Americana, is not the same, its pro- 

 perties camiot be very diiferent. 'I'his tree is abundant in Maine, 

 New Hampshire and Vermont, and is well known by the names of 

 Hackmctack or Cypress. In New Jersey, it is known by the name of 

 Tamarack, and in the Canadas it is called Epinette Rouge. We be- 

 lieve it has been U'^ed in some j>arts of the United States, for tan- 

 ning ; but its propetties are not generally known. If it be really 

 as valuable for tanning as the writer says, it should certainly be 

 saved for tliat purpose as well as the Hcndock bark.] 



[From Transactions of t!ie Society for the Encouragement of Arts, &c.] 



Woodlands, August I3lli, 1811, 

 Sir, — In the year 1 786, my deceased father did himself the honor 

 of laying before the Society of Aits, &;c., his remarks on the im- 

 provement of this place ; and in a second letter, in 1796, he wrote 

 some further observations ; since which time, the plantations, as 

 well as the place in general, have made great progress in beauty 

 asid improvement, which induces me to trouble you with a few- 

 ideas, that 1 flatter myself will be of importance to the country at 

 large, a^ well as of pj-ivate bjiiefit to persoiis in possession of woods, 

 which you will oblige me by laying before the Society. 



As the trees have now advanced, as I have before observed, to a 

 considerable size, we have beeti busy for some years, in weeding 

 them out to a timber distance ; in doing which, lately, and whilst 

 taking otf the bark of some larch trees that were wanted for build- 



