Persifor Frazer

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The Progress of chimical theory, its helps and Hindrances

Persifor Frazer, 2019 .

Evidences of the Action of Two Hands in Joint Signature Marks

Persifor Frazer, 1895 .

Scientific methods in the study of handwriting

Persifor Frazer, 1907 .

Tables for the Determination of Minerals by Physical Properties Ascertainable with the Aid of a Few Field Instruments: Based On the System of the Late Professor Doctor Albin Weisbach

Persifor Frazer, 2010 .

A Manual of the Study of Documents to Establish the Individual Character of Handwriting, etc., and to Detect Fraud and Forgery, including Several New Methods of Research

Persifor Frazer, M. D. Ewell, 1894 .

Zur Psychologie des Schreibens mit besonderer Rücksicht auf individuelle Verschiedenheiten der Handschriften

Persifor Frazer, 1895 .