Ovum of Asterias glacialis, with male and female pronucleus and a radial striation of the protoplasm around the former.
The protoplasm of the cells is also somewhat granular, and the granules are frequently so disposed as to produce a very well-marked appearance of striation on the inner end of the cells.
In many cases, also, the striation is not confined to the apertures, but spreads over the whole cortical layer.
Blocks of the same mineral character, embedded at Biddenham in the gravel Number 3, have lost all signs of this striation by the friction to which they were subjected in the old river bed.
The recent polishing and striation of limestone by coast-ice carrying boulders even as far south as the coast of Denmark, has been observed by Dr.
It is possible, as Mr. Geikie conjectures, that this second striation of the boulders may be referable to floating ice.
They can also maintain that the general direction of striation and drift implies the action of sea currents, while they appeal to local glaciers to account for special cases of glaciated rocks at the higher levels.
Where, however, the striation and transport take the course of existing valleys, more especially in hilly regions, the contrary may be inferred.
This fibrillarstriation is usually most distinct on the base of the openings, where also the endoplasm becomes stained very intensely by carmine.
In Gomphoneis and Achnanthes thestriation is both costate and punctate while in Gomphonema and Achnanthidium the striation is punctate only.
In the form here figured the striation is as stated by De Toni, but is about 19 at the ends.
In the shape and striation of the valves there is an approach to Cymbella.
A delicate striation is now apparent in what is becoming the long axis of the nucleus, at right angles to the nuclear disc, and the characteristic nuclear spindle is gradually produced.
Just inside the striation on the anode side it rose to a very high value, then continually diminished towards the bright side of the next striation when it again increased.
The above list will hopefully give you a few useful examples demonstrating the appropriate usage of "striation" in a variety of sentences. We hope that you will now be able to make sentences using this word.
