39S Method of purifying Molaffes. 



nearly, and the angle SBV = 8o° — 06'— 42''; from whence 

 SV = 58-645 inches. 



Again : Let us fuppofe the mean length of the veffel to be 

 40 feet, or 480 inches, and we fhall have the weight of the 

 whole veffel equal to the area of the fection MM CD == 

 4936-7808 multiplied by 480 = 2369654784 cubic inches 

 ef water, which weighs exactly 85708 pounds avoirdu-- 

 poife, allowing the cubic foot to weigh 6%-^ pounds. 



And, finally, as SV : SW (z. e.) as 58-645 : 2*573 : i 

 85708 : 3760 + , the weight on the gunwale which will 

 fiiftain the veffel at the given inclination. Therefore a veffel 

 of the above dimensions, and weighing 38 tons, 5 cwts. 

 sS lbs. will require a weight of 1 ton, 13 cwts. 64 lbs. to 

 make her incline 15 . 



In this example the deflecting power has been fuppofed 

 to act perpendicularly on the gunwale at B ; but if the 

 veffel is navigated by fails, the centre velique muft be found ; 

 with which, and the angle of deflection, the projected dif- 

 tance thereof on the line S V may be obtained ; and then 

 the power, calculated as above, neceffary to be applied at 

 the projected point, will be that part of the wind's force 

 which cuuils the veffel to heel. And converfely, if the 

 •weight and dimenfions of the veffel, the area and altitude 

 of the fails, the direction and velocity of the wind be given, 

 the angle of deflection may be found. 



X. New Method of feeing Mohijfes from their fharp 

 Tajle, and rendering them fit to he 11 fed in/lead of Sugar. 

 From Crell's Chemical Annals, 1798, Vol. I. Part 2. 



V_>iADET Devaux, according to the experiments made 

 by Lowitz, gives the following method : Take twenty-four 

 pounds of molaffes, twenty-four pounds of water, and fix 

 pounds of charcoal coarfely pulverifed; and having mixed 

 them in a kettle, boil the whole over a flow wood fire. 



9 When 



