Wiesner's papers on heliotropism are in the "Denkschriften" of the Vienna Academy, Volumes 39 and 43.
Romanes' paper on the effect of intermittent light on heliotropism was the "Proc.
I will maintain to the death that your case of Fernando Po and Abyssinia is worth ten times more than the belief of a dozen physicists.
I have been trying a few experiments on Melastomads; and they seem to indicate that the pollen of the two curious sets of anthers (i.
I fully admit the difficulty of similarity of stigmatic chamber in the two Acroperas.
Can the name Heterocentron have any reference to such diversity?
I have left home for a fortnight to see if I can, with little hope, improve my health.
I do not know whether you have attended particularly to Melastoma; if you have not, perhaps Hooker or Oliver may have done so.
I should think you could not give too much time to Wellwitchia (I spell it different every time I write it) (612/2.
The subject had gone out of my mind, but I now remember thinking that the imperfect action of the crimson stamens might throw light on hybridism.
This problem reduces itself simply to that of the method whereby the gametes transmit heliotropism to the larvae or to the adult.
The writer has shown that the experiments on the effect of acids on the heliotropism of copepods can be repeated with the same result in Volvox.
These periodic motions are determined to a large extent, if not exclusively, by the heliotropism of these animals.
The heliotropism of animals is identical with the heliotropism of plants.
What has been said in regard to animal heliotropism might, if space permitted, be extended, mutatis mutandis, to geotropism and stereotropism.
Since the workers show no heliotropism it looks as if an internal secretion from the sexual glands were the cause of their heliotropic sensitiveness.
Since the consumption of carbon-dioxide by the green plants ceases towards evening, the tension of this gas in the water must rise and this must have the effect of inducing positive heliotropism or increasing its intensity.
The tendency to migrate is the outcome of the fact that periodically varying external conditions induce a periodic change in the sense and intensity of the heliotropism of these animals.
This heliotropism lasts about half an hour (probably until all the carbon-dioxide has again diffused into the air.
At the same time the temperature of the water near the surface is lowered and this also increases the positive heliotropism in the organisms.
Experiments were also carried on bearing on Heliotropism and on Seed Germination.
He was busy arranging experiments on heliotropism and on the power of germination in dry seeds after precautions had been taken to prevent any ordinary processes of respiration, which were worked up into a Royal Society paper.
This proves that there is no connection at all between heliotropism and formation of chlorophyll, or vice versa--a point which I cannot find to have been hitherto stated.
Very little attention has been given to the subject of heliotropism until within a few recent years.
He defines "List" as "an attitude resulting from the rotation of the insect about its longitudinal axis, as heliotropism results from a rotation about an imaginary vertical axis at right angles to this.
The tan flies are interesting because they have lost the positive heliotropism that is so marked a feature in the behavior of D.
The above list will hopefully give you a few useful examples demonstrating the appropriate usage of "heliotropism" in a variety of sentences. We hope that you will now be able to make sentences using this word.
