William E. Hagan

• A treatise on disputed handwriting and the determination of genuine from forged signatures
• Treatise on Disputed Handwriting and the Determination of Genuine from Forced Signatures
• Treatise on Disputed Handwriting and the Determination of Genuine from Forged Signatures. the Character and Composition of Inks, and Their Determination by Chemical Tests. the Effect of Age As Manifested in the Appearance of Written Instruments and Docu