T. O'Conor 1851-1940 Sloane

• How to Become a Successful Electrician; the Studies to Be Followed, Methods of Work, Fields of Operation and Ethnics of the Profession
• Rubber Hand Stamps and the Manipulation of Rubber; a Practical Treatise on the Manufacture of India Rubber Hand Stamps, Small Articles of India Rubber, the Hektograph, Special Inks, Cements, and Allied Subjects