Franklin - Practical Physics Photometry... - paperback or softback - X555z

Franklin - Experiments and Observations on Electricity Made at Phila - X555z

Milagi - Digital Flame Photometry - paperback or softback - X555z

Franklin - Experiments and observations on electricity made at Phila - X555z

Illumination and Photometry (Classic Reprint)

Franklin - Experiments and Observations On Electricity Made At Philad - X555z

Franklin - Practical Physics Elementary and Advanced Measurements in - X555z

Practical Photometry: A Guide to the Study of the Measurement of Light