The Morgan laboratory of physics, University of Pa.

• Book ID: 104115866
• Publisher: Elsevier Science
• Year: 1902
• Tongue: English
• Weight: 46 KB
• Volume: 154
• Category: Article
• ISSN: 0016-0032
• DOI: 10.1016/s0016-0032(02)90147-x

✦ Synopsis

185

examples of this method is that employed by the average photographer, who mixes his solutions by means of complex quantities approximately expressed in avoirdupois or troy weights.

Very truly, JOHN TROWBRIDGE.