An English Translation of the 1767 Duc de Chaulnes Report on His Method of Determining Refractive Indices, and a Practical Graphical Procedure Based on a Refined Duc de Chaulnes Method
THE MICROSCOPE
2016, Volume 64:3, pp. 131–143
DOI
https://doi.org/10.59082/QEJV5957
AUTHORS
Franz W. Nentwich
ABSTRACT
An English translation of the original Duc de Chaulnes method for determining refractive indices (RIs) of sections is provided, including a description of his own microscope. Other related references are also included, as well as a modern graphical procedure for determining RIs accurately and rapidly with any microscope objective, based on a refined Duc de Chaulnes method.