Abbott Handerson Thayer

The Law Which Underlies Protective Coloration

The Auk, Vol. 13, American Ornithologists' Union, aprile 1896, pp. 124-129.

Abbott Handerson Thayer

Further remarks on the law which underlies protective coloration

The Auk, Vol. 13, American Ornithologists' Union, ottobre 1896, pp. 318-320.

John O'Neill

Improved Means or Method of Producing Living Pictures by the Manipulation of the Leaves of a Book

Burnley 24 luglio 1897.