The microscope made easy: or, I. The nature, uses and magnifying powers of the best kinds of microscopes ... II. An account of what surprizing discoveries have been already made by the microscope / By Henry Baker.

  • Henry Baker
Date:
1754
Catalogue details

Licence: Public Domain Mark

Credit: The microscope made easy: or, I. The nature, uses and magnifying powers of the best kinds of microscopes ... II. An account of what surprizing discoveries have been already made by the microscope / By Henry Baker. Source: Wellcome Collection.

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    another with as much Brillcnefs and Vigour as if the Cock had been but newly dead, tho’ it was killed the Day before : And by feve- ral Trials on the Semen of other Cocks it has been found, that the Animalcules therein will live many Hours in a Capillary Glafs Tube.-To a flight Obferver they feem in the Form of Eels ; but if the greatefl: Mag¬ nifiers be ufed with due Attention, they will be found £haped as Fig. III. Plate XII.- Their Size is fo extreamly minute, that a •f* Million of them are fuppofed not to exceed the Bignefs of a Grain of Sand, and their Tails cannot be difcerned without much Difficulty, being ten thoufand times more flender than the Hair of a Man’s Hand. A little of the Seminal Matter taken from the Tefticle of a Dog, abounded with Ani¬ malcules^ J a Million whereof would hardly equal a large Grain of Sand : and after fome of this Matter had been kept feven Days in a Glafs Tube, feveral of the Animalcules remained alive and vigorous. [Their Form is fhewn Fig. IV.]—The Tejiicles of a Hare, tho’ four Days dead, were alfo ex¬ ceedingly full of Animalcules like thofe in Dogs, fwimming in a clear Liquor, but without Motion. •f Arc. Nat. Tom. IL Par. II. p. 369. Arc. Nat. Tom, I, Par. II. p. 160. Killing