...Simple lenses or dissecting microscopes...
Worrallo Whitney 「A Guide for the Study of Animals」
...Simple lenses andcompound microscopes...
Worrallo Whitney 「A Guide for the Study of Animals」
...Simple orcompound microscopes, forceps, and a bristle...
Worrallo Whitney 「A Guide for the Study of Animals」
...Living birds, as perhaps pigeons, or mounted or stuffedskins, separate feathers, portions of feathers, microscopes...
Worrallo Whitney 「A Guide for the Study of Animals」
...Cheap microscopes have usually only one eye-piece,those of a better class have two, and the best are furnishedwith three, or even more...
Henry J. Slack 「Marvels of Pond-life」
...This is a habit easily acquired, and is onefor which our natural microscopes are exceedinglygrateful; and every judicious observer desires to keepon the best terms with his eyes...
Henry J. Slack 「Marvels of Pond-life」
...However carefully we examine it with our finest chemicalreagents and most powerful microscopes, we can find no definite parts or noanatomic structure in it...
Ernst Haeckel 「The Evolution of Man」
...The great scientist was stoopingover, looking at the balances of the indicatorsthrough microscopes...
Various 「Astounding Stories of Super-Science April 1930」
...The eyepiecesusually furnished with telescopes are, in theiressential principles, compound microscopes, and they areof two descriptions, "positive" and "negative...
Garrett Serviss 「Pleasures of the telescope」
...The smallest object that can be seen by a keen eye makes an angleof 40", but by putting six microscopes on the scale of the telescopeon the mural circle, we are able to reach an exactness of 0"...
Henry Warren 「Recreations in Astronomy」
...Bring telescopes and microscopes, use all strategy, for that atomis difficult to catch...
Henry Warren 「Recreations in Astronomy」
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