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He adds, that if one filament be touched after it is separated from the floret, that it will contract like the muscular fibres of animal bodies, his experiments were tried on the Centauréa Calcitrapoides, and on artichokes, and globe-thistles. Discourse on the irratability of plants. Ten males and five females.
I conceive the primordium, or rudiment of the embryon, as secreted from the blood of the parent, to consist of a simple living filament as a muscular fibre; which I suppose to be an extremity of a nerve of loco-motion, as a fibre of the retina is an extremity of a nerve of sensation; as for instance one of the fibrils, which compose the mouth of an absorbent vessel; I suppose this living filament, of whatever form it may be, whether sphere, cube, or cylinder, to be endued with the capability of being excited into action by certain kinds of stimulus.
A rheostat is also useful in that it keeps the filament from burning out when the current from the battery first flows through it. You can very often increase the sensitiveness of a vacuum tube after you have used it for a while by recharging the A or storage battery. The degree to which a vacuum tube has been exhausted has a very pronounced effect on its sensitivity.
If the reeling has been well done, and the size of the strand is uniform, we have no trouble; but if the reeling has been poor, and the gum not thoroughly soaked out of the filament, the threads will snarl and break when they are put on the machines. Frequently there is great loss from poorly reeled cocoons, as I think I told you.
So we both alleged a state of utter repletion, and did not solve the mystery of the contents of the cupboard, not too luxurious, it may be conjectured, and yet kindly offered, so that we felt there was a moist filament of the social instinct running like a nerve through that exsiccated and almost anhydrous organism. We left him with professions of esteem and respect which were real.
For example, the early filament made of a mixture of lampblack and tar is merely a suggestion in the notes, but its making afforded an example of Edison's pertinacity.
You can see that it would never do to join a lot of new ones all in the same spot." "I suppose the cocoons run in uneven lengths, anyway, don't they?" ventured Pierre. "Scarcely any of them would contain the same number of yards of filament even were they all to be started together." "Precisely.
Now for the use of these yellow bags, which are called the anthers of the stamens, the stalk on which they grow being called the filament or thread. We will leave it there for a time, and examine the body called the pistil, to which the knob belongs.
Yet it came back to her that she had been called by the sound of men's voices; of Richard's voice, she could be almost sure, for there was a filament of pleasure trailing across her consciousness. There was no reason why he should be out of doors at this hour, before the family had been called to breakfast, unless the search for Marion had been unsuccessful.
All the other species of Vicia, I believe, bear tendrils; but the bean is stiff enough to support its own stem, and in this species, at the end of the petiole, where, according to analogy, a tendril ought to have existed, a small pointed filament projects, about a third of an inch in length, and which is probably the rudiment of a tendril.
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