Page images
PDF
EPUB
[blocks in formation]

A treatise on industrial photometry with special application to electric lighting

Adrien Palaz, George Washington Patterson, Merib Rowley Patterson

[graphic][subsumed][subsumed][subsumed][subsumed][subsumed][subsumed]
[graphic]
[merged small][ocr errors][ocr errors][merged small][ocr errors][merged small][merged small]
« PreviousContinue »