On the construction and use of the microscope / by Adolphe Hannover ; edited by John Goodsir.

  • Hannover, Adolph, 1814-1894.
Date:
1853
Catalogue details

Licence: Public Domain Mark

Credit: On the construction and use of the microscope / by Adolphe Hannover ; edited by John Goodsir. Source: Wellcome Collection.

Provider: This material has been provided by the Francis A. Countway Library of Medicine, through the Medical Heritage Library. The original may be consulted at the Francis A. Countway Library of Medicine, Harvard Medical School.

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    PREFACE. It is my desire that the present Volume may serve as a guide, not only for those who already possess a microscope, and have had some practice in microscopical observations, but also for those who have only occasional opportunities of employing such an instrument, and who must, therefore, content themselves for the most part with mere delineations or descriptions of microscopical objects; for although the frequent use of the microscope is the best guide to its management, written instructions are frequently of service either in giving rules and indicating manipulations, which might otherwise escaj3e the attention of the observer, or by sparing him the time and trouble that experience in gene- ral costs. I have, moreover, not unfrequently had occasion to remark, however singular it may appear, that those even who understand the practical use of the microscope are defi- cient in a theoretical knowledge of the instrument,^and are unacquainted with the principles that regulate its construc- tion. I would hope that the present work may prove acceptable to that more numerous class of persons who do not themselves take part in microscopical investigations, and who must, therefore, rest satisfied with mere delinea- tions and descriptions. Such persons may possibly derive benefit from the practical, not less than the theoretical, por- tion of the book, since they will be the better able to esti-