Those readers who wish to make a more intensive study of the construction and use of the refractometer will find a very full and complete account of the subject in Gem-Stones and their Distinctive Characters, by G.
The price of the refractometer is necessarily so high (duty included) that its purchase might not be justified in the case of the smaller retailer.
The Herbert-Smith refractometer is there described fully, its principle is explained and directions for using it are given.
These are all doubly refractive, have no color, and hence no dichroism, and unless one has a refractometer to get the refractive index, they are difficult to distinguish.
Then the refractometer is moved in the same direction till the fringes appear again at l, and so on till the whole meter has been stepped off.
The fractions are determined as follows: The fringes observed in the refractometer under the conditions above mentioned can readily be shown to be concentric circles.
The above list will hopefully give you a few useful examples demonstrating the appropriate usage of "refractometer" in a variety of sentences. We hope that you will now be able to make sentences using this word.
