The author goes to social morphology for the answer: it is, he says, the growing density of population which brings with it this increasing differentiation of activities.
In the sixth chapter of the work, Morphology comes into the foreground once more.
It was in the middle of the last century that the growth of comparative morphology and the study of phases of development reached their highest point.
This is the so-called anatomical method, which seeks to draw conclusions as to the morphology of the flower from the course of the vascular bundles in the several parts.
External Morphology Each of the external morphological characters used in the systematic treatment of Ptychohyla, as well as the nature of the tongue, is discussed below.
This, can be effected by means of the rudiments which man still retains, by the characters which occasionally make their appearance in him through reversion, and by the aid of the principles of morphology and embryology.
At a still earlier period the progenitors of man must have been aquatic in their habits; for morphology plainly tells us that our lungs consist of a modified swim-bladder, which once served as a float.
The morphology readily changes in response to medium, temperature, age, etc.
Round and oval cells constantly occur even in pure culture, and many of these shorter forms of typhoid are identical in morphology with some of the many forms of Bacillus coli.
For the study of the morphology of yeasts under the microscope the problem was not a difficult one.
Winogradsky found that there were considerable differences in the morphology of the organism according to the soil from which it was taken.
It is also needless to add that of the remnant little beyond morphology is known, for as their function is learned they are classified otherwise.
It is well known that under artificial cultivation an organism may be greatly modified in its morphology and physiology, and yet its conformity to type remains much more marked than any degeneration which may occur.
Another important malformation relates to the morphologyof the feet.
Hence morphology constitutes a fundamental part in the study of human personality.
Dimensions and Morphologyof the Body at the Various Ages.
Such infantiles very frequently have a special morphology of the face, that suggests the mongol type, and characteristic malformations of the hands (little fingers atrophied).
He reached some very exact concepts of the morphology of the medial man, based upon measurements, and also of the intellectual and moral qualities of the medial man, expounding an interesting theory regarding genius.
When I made the first attempt in my General Morphology (1866) to work out the theory and apply it to classification, I found no problem of phylogeny that gave me so much trouble as the linking of the vertebrates with the invertebrates.
Formerly Demonstrator in Animal Morphology in the University of Cambridge.
Under the title of the Morphology of Knowledge Bosanquet considers the evolution of judgment and inference in their varied forms.
In this paper I have presented data obtained from the study of certain features of morphology and biochemistry which I think are less subject to the influence of environmental factors than those features studied by recent workers.
The comparative functional morphology of the pelvic appendage in three genera of Cuculidae.
Studies on the post-cranial morphologyof Ascaphus truei.
The morphology of the ribs and the transverse processes of Necturus maculatus.
Wilkinson 70 Morphology and Structure of the Walnut--C.
The ganglia of the nervous system offer some important evidence as to the morphology of the head, and are alluded to below.
Morphology of an Insect: the embryo of Gryllotalpa, somewhat diagrammatic.
Lowne, The Anatomy, Physiology, Morphology and Development of the Blow-fly (2 vols.
On the agamic reproduction and morphology of Aphis.
But there were a few--like the Lani--where similarities were so close that it was impossible to determine their status on the basis of morphology alone.
But they were intelligent, upright, bipedal mammals whose morphology was so close to man's that it had taken the ultimate test to settle their status.
On theMorphology of the Duck Tribe and the Auk Tribe.
We get morphology as a basis, and thread our way upwards.
Zoological morphology is the doctrine of animal form or structure.
Morphology has taught us that it is a series of segments composed of homologous parts, which undergo various modifications--beneath and through which a common plan of formation is discernible.
Morphology and distribution might be studied almost as well, if animals and plants were a peculiar kind of crystals, and possessed none of those functions which distinguish living beings so remarkably.
The objection suggested by these questions is a very valid and important one, and morphology was in an unsound state, so long as it rested upon the mere perception of the analogies which obtain between fully formed parts.
But the facts ofmorphology and distribution have to be accounted for, and the science, whose aim it is to account for them, is Physiology.
