SOME NOTES ON A DOCTORS LIABILITY. 769 



been B A. Then for any year from 1800 to 1899 the number of letters 

 used equals the number of years + \ the number of years (that number 

 being leap-years) 14 for centurial years which are not leap-years. This 

 number divided by 7 gives the number of times all the letters have been 

 used, and if the remainder is the dominical letter is the same as that 

 of the year 0, i, e., A (from March). Any remainders, 1, 2, 3, etc., 

 will give corresponding letters, G, F, E, etc., as in the years 1, 2, 3, 

 etc., A. c. Upon the same principle the dominical letter for the years 

 of any other century can be found. But, as the number to be deducted 

 for centurial years, not leap-years (equal 14), is an exact multiple of 7, 

 the remainder will be the same whether it is deducted or not, and hence 

 no account need be made of it, for it is by the remainder and not by 

 the quotient that the Sunday letter is fixed. The above-mentioned rule 

 will, therefore, not answer for any century but this one until the twen- 

 ty-eighth century, when it can again be used, because the centurial 

 number to be deducted will then be 21, which, being also a multiple of 

 7, may be disregarded. 



In addition to these tables, another was constructed showing at a 

 glance what letter corresponds to any day of the year ; but, as this 

 table is cumbersome and unwieldy, a device has been substituted which 

 is very simple and answers all the purposes of a table. The letter for 

 the first day of every month is always the same. These letters being 

 known, together with the Sunday letter for any year, we can readily 

 find what the first day of any month is, and consequently what day of 

 the week any other day of the month is. The letters for the first of 

 each are as follows, beginning with January : A, D, D, G, B, E, G, C, 

 F, A, D, F, and, to assist the memory in retaining them, they have 

 been woven into the following couplet : 



12 3 4 5 6 



At Dover Dwells George Brown Esquire, 



T 8 9 10 11 12. 



Good Carlos Finch, And David Friar. 



-*- 



SOME NOTES OX A DOCTOE'S LIABILITY. 



Br OLIVER E. LYMAN. 



IT is related, as a legend of the medical fraternity, that the Emperor 

 Augustus was once so highly pleased at a cure effected in himself 

 by his doctor, Antonius Musa, that he raised that gentleman to the 

 rank of knight, and relieved the whole profession from the burdens of 

 taxation. 



Probably at no time before or since that event has the lot of the 

 physician been such a happy one. In the earlier days of Rome the 



VOL. XVIII. 49 



