396 FERGUSON'S LECTURES. 



LECT. already set down, must be reckoned the whole sum of 

 XH< the collection. 



3. Subtract the result, or sum of this collection, from 

 12 signs ; and write down the remainder. Then, look 

 in the table, under Days, for the next less mean motions 

 to this remainder, and subtract them from it, writing 

 down their remainder. 



This done, look in the table under hours (marked H) 

 for the next less mean motions to this last remainder, 

 and subtract them from it, writing down their re- 

 mainder. 



Then look in the table under minutes (marked M) 

 for the next less mean motions to this remainder, and 

 subtract them from it, writing down their remainder. 



Lastly, look in the table under seconds (marked S) 

 for the next less mean motions to this remainder, either 

 greater or less ; and against it you have the seconds 

 answering thereto. 



4, And these times collected, will give the mean time 

 of the required new moon ; which will he right in common 

 years, and also in January and February in leap- 

 years : but always one day too late iu leap-years alter 

 February. 



