148 Dr Pearson, On a Manuscript Table of Log. Sines. [Feb. 25, 



The differentioB are, of course, the logarithms of the tangents ; 

 there is no table of natural tangents such as is given by Sherwin, 

 but of course it could always be deduced from the table of their 

 logarithms. In the manuscript itself, the whole table for the sines, 

 differences, and cosines is given in one line, as in our present 

 tables, but they could not have been all conveniently included in 

 an octavo page. 



