Mr. Marsden's Correction of an Era . 195 
of the cell, which is seldom done with wax alone, but with a 
mixture ; and they sometimes cover the silk lining of the last 
chrysalis ; but all this makes such cells clumsy, in compari- 
son to the original ones. 
To Charles Blagden, M.D. Sec.R.S. 
DEAR SIR, 
In a Paper on the Chronology of the Hindoos, which the So- 
ciety did me the honour to print in the LXXXth Volume of 
their Transactions, I have said (p. 566 and 570) that the era of 
Bikramajit commences in the year 56 before Christ, and that 
the year 1846 corresponds with our year 1790 (from April) : 
but it appears from an examination of the numbers of an ori- 
ginal Benares almanack, that I have calculated the elapsed time 
of that era one year short (by comparison with the era of Sa- 
laban, which being employed in astronomical computations is 
sufficiently ascertained), and that the year 1847, not 1846, 
should correspond with 1790, and the commencement of the 
era with the year 57 before Christ, both from April. 
I am very desirous that this error should be noticed as soon 
as possible, and request that the correction may have a place 
in the Volume now printing. 
I am, dear Sir, &c. 
WM. MARSDEN. 
