. The microscope and its revelations. OSCOPIC FOBMS OF ANIMAL LIFE tapering gradually from the base to the point. Their size is ex-tremely variable, the largest that have been observed being about5^oth of an inch in length, and the smallest about is^-orjth. Whenin motion each filament appears to bend from its root to its point,returning again to its original state, like the stalks of corn whendepressed by the wind ; and when a number are affected insuccession with this motion, the appearance of progressive wavesfollowing one another is produced, as when a cornfield is agitatedby successive gus
. The microscope and its revelations. OSCOPIC FOBMS OF ANIMAL LIFE tapering gradually from the base to the point. Their size is ex-tremely variable, the largest that have been observed being about5^oth of an inch in length, and the smallest about is^-orjth. Whenin motion each filament appears to bend from its root to its point,returning again to its original state, like the stalks of corn whendepressed by the wind ; and when a number are affected insuccession with this motion, the appearance of progressive wavesfollowing one another is produced, as when a cornfield is agitatedby successive gusts. When the ciliary action is in full activity,however, little can be distinguished saAe the whirl of particles inthe surrounding fluid ; but the back stroke may often be perceived,when the forward stroke is made too quickly to be seen, and thereal direction of the movement is then opposite to the apparent. Inthis back stroke, when made slowly enough, a sort of featheringaction may be observed, the thin edge being made to cleave the.
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Keywords: ., bookcentury1900, bookdecade1900, booksubjectmicrosc, bookyear1901
