Whilst the greatest effort has been made to ensure the quality of this text, due to the historical nature of this content, in some rare cases there may be minor issues with legibility. The demand for microscopes caused by their large employment by professional men and students caused a corresponding competition among manufacturers to produce the best possible instruments at the lowest price, suitable for the purposes for which they were required, and this has been an important factor in the present state of good quality at low cost.
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ISBN-13
978-0-259-71019-6 (9780259710196)
Schweitzer Klassifikation
