[1] For Figures 1, 3, and 7 we are indebted to Mr. Thomas Greenwood, in
whose work on Public Libraries they appear.
[2] For Figures 2 and 4 we have to thank Messrs. Wake & Dean, library
furnishers, London.
[3] We believe the credit of this really most ingenious invention
belongs to the late Dr. Tyler, one of the founders of Bethnal Green Free
Library.—EDITORS.
[4] See _Library Chronicle_, vol. iv. p. 88; Library Notes (American);
and _The Library_, vol. III. p. 414.
[5] An ingenious adaptation of this invention is suggested and described
by Mr. Lymburn, Librarian of Glasgow University Library—in _The Library_
for July-August, 1892—EDITORS.
[6] Figures 5, 6, and 8 are inserted by kind permission of Messrs. Hammer
& Co., library furnishers, London.
[7] For Figures 9, 11, 13, 14, and 17 we are indebted to Mr. Greenwood’s
work on Public Libraries.
[8] We are obliged to Messrs. Wake & Dean for the Figures Nos. 10, 15 and
16.