Transverse sections, showing the distinction between the cortical and medullary substances, and the central collection of pigmentary matter, sometimes found in the latter.
Longitudinal section of the shaft, showing the fibrous character of the medullary substance, and the arrangement of the pigmentary matter.
The cells are very distinct, with nuclei enclosing pigmentary granulations (Magnified 350 times)] Cold baths are less cleansing than hot, but serve as an excellent tonic and stimulant to the bodily functions.
Under the former division are permanent enlargements of the spleen and liver, and pigmentary matter in the blood and deposited in various {603} organs.
Thence result the formation of coagula in the congested vessels and deposits of pigmentary matter.
The treatment given for yellow jaundice as follows: injecting and washing the blood vessels with a mild solution and the application to the affected parts of a strong bleaching solution, should be given for pigmentary atrophy.
The same conclusion is reached when we analyse the nature of mimetic resemblance and realize how complex it really is, being made up of colours, both pigmentary and structural, pattern, form, attitude and movement.
The colored inks of antiquity included the use of a variety of dyes andpigmentary colors, typical of those employed in the ancient art of dyeing, in which the Egyptians excelled and still thought by many to be one of the lost arts.
If it is to be used for record or documentary purposes it must not be altogether obliterated if brought into contact with water or alcohol, and should depend for permanency on its chemical and not on its pigmentary qualities.
One result of this among the Vertebrata is that the eyeball is pink in colour, since the cornea, iris and retina being transparent, the red blood contained in the capillaries is unmasked by the absence of pigmentary material.
Furth and Hugo Schneider showed that a tyrosinase could be obtained from the blood of certain insects, and, acting upon a chromogen present in the blood, converted it into a pigmentary substance of melanin-like nature.
Alabaster may be stained by digesting it, after heing heated, in various pigmentary solutions; and in this way a good imitation of coral has been produced (alabaster coral).
It is the result of the too great intensity of the light incident upon the retina, and which in normal eyeballs is adequately diminished by the absorptive power of the pigmentary material.
One unquestionable cause of this kind comes into action in regard to pigmentary selection.
It would thus appear that in Continental Europe generally, from south to north, there is a fair uniformity of opinion as regards the pigmentary type of feminine beauty.
Most people who will carefully introspect their own feelings and ideals in this matter will find that they are not attracted to persons of the opposite sex who are strikingly unlike themselves in pigmentary characters.
These pigmentary projections in front of the upper border of the pupil are often mistaken for the products of disease or injury in place of the normal and beneficent protectors of the nerve of sight which they are.
Duyse reports a case of extensive hypertrichosis of the back in a girl aged nine years; her teeth were normal; there was pigmentation of the back and numerous pigmentary nevi on the face.
With such disks made in the sixpigmentary standards red, orange, yellow, green, blue and violet, the intermediate pigmentary spectrum colors may be very accurately determined by combination and rotation.
These tests are based on combinations of the Bradley standard orange, green and violet pigments, and therefore are far stronger in color than those colors usually termed citrine, russet and olive, made by mixing the pigmentary secondaries.
In pigmentary colors the term pure is entirely one of relative degree.
In the combination of pigmentary colors a tint of a color is the pure color mixed with white, a shade is the color mixed with black, and a broken color is a pure color mixed with both black and white, which is a neutral gray.
For pigmentary standards the best possible pigmentary imitations of the six spectrum standards are secured and to these are added the nearest approach to white and black that can be produced in pigments.
If a pigmentary imitation of the solar spectrum with the addition of violet red at the red end and red violet at the violet end be made, and the two ends joined, we shall have a spectrum circuit.
Experiments of this kind are exceedingly interesting and instructive, and demonstrate the wonderful intensity and purity of the spectrum colors as compared with the purest pigmentary colors that can be produced.
All spectrum colors are pure, while no pigmentary color is absolutely pure, but the pigmentary color which approaches most nearly to the corresponding color in the spectrum must be selected as the pigmentary type of purity of that color.
