29 Eaton Place. <1>
27 Feb. 1835.
My dear Sir
I merely write this to say that even when the roots of the equation you refer to are imaginary, the solution of the problem is not illusory. There is an example of this kind in Legendre’s 3rd Supplement. <2>
Yours very truly
J W Lubbock
[address panel:]
London February twenty eight 1835 Howard Elphinstone <3>
H F Talbot Esq
Lacock Abbey
Chippenham
[added on adjacent panel:]
H. F. Talbot Esqr
Lacock Abbey
Chippenham
Notes:
1. London
2. Adrien Marie Legendre (1752–1833), Traité des Fonctions Elliptiques et des Intégrals Eulériennes avec des Tables pour en Faciliter le Calcul Numérique (Paris: Huzard-Courcier, 1825). Supplements were printed in 1828.
3. Sir Howard Elphinstone, 2nd Baronet (1804–1890), politician.