113 On apportioning ike Supply of Oil, Kaphiha, ©? Gas, 



Table I. 



Dates, o -g; 



S«pt.29 



Oct. 6 

 12 

 18 

 24 

 SO 



Vov. 5 

 11 

 If. 

 21 

 26 



Dec. 1 

 6 



11 

 16 

 21 



26 



■il 

 Jan. 5 



10 

 15 

 20 

 25 

 30 

 Feb. 5 

 11 



ThisTable exhibits, the most simple amongst thevarious inodep, 

 by whicii the giving -07it of the Oil, might be regulated, so as to 

 suit the unequally varying lengths of the Nights ; and it will 

 perhaps be sufficiently exact, for every useful purpose, to serve 

 out equal quantities of Oil, on each of the 52 days, whose dates 

 are set down in the 1st column ; to serve for as many of the next 

 following Nights, as are set down opposite, in the 2d column. 

 But in case that greater precision should be required, column 3 

 shows, the Number of Hours and Minutes, contained in the 

 number of Nights set in the preceding column, and the 4th and 

 5th columns show, by how many Jumdredth parts, these exceed 

 or fall short, of SI*"* ^l^G, the measure of the mean J-days 

 supply : and by this it will be easy, to increase or decrease the 

 weekly supply, so as to suit exactly the. number of Nights, 

 through which it is intended to last. 



*The castings of the tivo half-yearly portions of the above Table 

 are added, in order to show in col. 2, how very unequal the 



number 



