^6. What quantity of Tar gofes for paying a yard 
fquare upon a Ship? 
27. What are the proportions of Brimftone and Rt)- 
fin for graving a Ship ? 
2 % . What the proportion of Lime and Sand for Brick 
mortar. 
29 . What the proportion of Lime and Hair for Plai- 
ftering ? 
30. What the proportion of Lin(eed-Oil and Oker 
for Colouring and Priming > 
31. What the proportion of Lead and Pev/ter for So- 
der? 
32. What the weight of Wool and length of Thred 
in a yard fquare of the feveral forts of Woollen Manufa- 
ctures f 
53. The fame for the Manufacture of Hemp, Flax, 
Cotton, Hair and Silk > 
34. The proportion of Meal, Water and Yeaft in 
Bread, in Dow new baked and ftale ? 
3j-. The proportion of Increafe between Dow and 
the fame fermented 5 between Barly and the fame mal- 
ted 
36. The Proportion of Hemp and Tax in a well- 
made Rope ? 
3 7.The quantity of Stuffin any Garment propound^ 
ed, and the length of the feveral Seams and the Sew- 
ing Thread, and number of Stitches in the fame ? 
58. The proportion between the Weight, and the Ex- 
tent of the feveral Leathers in a (hooe > 
3 9 . How many Shooes of a certain fize, a Shooema- 
ker can make up in a time given? 
40. What length of Thred can be fpun in ten hours^ 
from Cable-yarn to Taylors brown Thred > 
41. What is the length of an Ounce of all fine 
Thred? 
42. * To wiiat extent may an Ounce of fine Gold, Sil- 
C J ver^ 
