WATT. Bibliotheca Britannica. Edin., 1824. 4 v. Q. _Antiq._ £4 15_s._

The following may sometimes be of use: LOW’S English catalogue,

1835–80. Lond., 1864–82. 3 v. O. 117_s._, and LOW’S [Subject] index to

the British catalogue, 1837–80. Lond., 1858–84. 3 v. O. 86_s._

Crockford’s Clerical directory, the Medical directory of Great

Britain, the Army list, and similar registers afford assistance.