506 To Correspondents • 
Bleaching, Wool, Silk, Cotton, Linen, Paper, Stained prints* 
Dyings Wool, Silk and Cotton. 
Priming Calicoes. 
Pottery : glazing of pottery : enamel colours for pottery. 
Glass Manufactory : With an abridged translation of Loysel^ 
and Bos. D* Antic. 
Manufacture of Glue : Isinglass : Starch : Hair powder : 
Wafers : Sealing wax. 
Gunpowder and the purification of Salt petre. 
Manufacture of Alum : of common Salt. 
Varnishes , particularly the actual manufacture of Copal Var- 
nish in the large way. 
Etching on Copper and Glass : Aqua tinta ; Staining of wood 
and bones : Marble polishing, &c. 
The above with other articles of the same general description, 
will occupy the greater part of each number : about sixty pages 
more will be filled up with such miscellaneous matter as may oc- 
cur to me from time to time. 
Should the above plan be reasonably well executed and en» 
couraged, this work will go on ; if not, the end of the year will 
close it, so far as I am concerned. T. C. 
I have received from a manufacturer of stone ware at Charles- 
ton on the Ohio, a specimen of what is deemed a very valuable 
and secret cement for joining together pieces of stone. I have 
tried it, and it is made thus. Melt 3 parts by weight of Rosin 
with one part by weight of wax ; when fully incorporated add to 
them while fluid, one part by weight of finely sifted well-dried brick 
dust. A little more or less rosin makes the composition harder 
or softer. 
Dr. Doddridge of the same place has sent me a very useful 
pamphlet on the management of Bees, with an improvement on 
the structure of the Bee house, the mode of colonizing bees, and 
taking the honey without destroying the insects. The directions 
seem to me judicious and practicable. It is printed at St* 
CJairsville on the Ohio. 
END OF VOLUME FIRST— NEW SERIES. 
Alexander id Phillips, Printers. 
