The amount of increment was determined in 36 specimens having a first growth-ring and an areola that could be measured accurately.
For example, turtles that retained the areola of the third central lamina, retained also the areolae of the fourth and fifth centrals; when only one central areola remained, it was the fifth.
The first zone of epidermis was separated from the areola by an indistinct growth-ring (resembling a minor growth-ring) in most hatchlings, but in a few specimens the new epidermis appeared to be a continuation of the areola.
Note the granular texture of the areola (a); the smooth zone between the areola and M1 shows amount of growth in the season of hatching.
Exfoliation ordinarily occurred on the scutes of the carapace that were the least worn; the exfoliating portion included the areola and the three or four oldest (first formed) layers of the scute.
Box turtles ordinarily do not shed the older parts of their scutes; the areolaand successively younger portions of the lamina remain attached to the shell until worn off.
The areola of the fifth central lamina, because of its protected position, persists in adult turtles that are well past the age of regular growth.
Most frequently the breasts do not swell, nor the areola change color, nor the tubercles appear, till about the fourth month, and frequently much later.
The linea alba becomes darker at this period, and so does the areola around the nipple.
It is true that in some young females the mucus lining is naturally darker than it is in others, but, like the areola round the nipple, this natural tinge is not like that produced by pregnancy.
An ulcer surrounded by an inflammatory areola and the granulation tissue together illustrates the etiology of cicatricial tissue.
Branching vessels are seen in the livid areola of the ulcers.
Areola is the technical name of that peculiar circle which immediately surrounds the nipple.
When pregnancy has occurred the areola around the nipple becomes darker and darker; other parts of the body become similarly discolored, this occurs on the abdomen and perineum.
In the cow the areola is only a faint line immediately around the pock.
In the opinion of many observers--and that notion has cropped out every now and then up to the present day--absence of the areola furnished at least presumptive evidence that the constitution had eluded infection.
The areola is a circumscribed redness of the skin, perfectly circular in form and of five or six times the diameter of the pock itself.
No areola appears at any time, and finally the lesion slowly disappears, leaving no trace of its existence.
Lymph should usually be taken on the eighth day, inclusive--never after the areola has formed.
At the same time what is known as the areola forms around the pock, and constitutional symptoms show themselves.
Areola and Rivoli were again remembered, and recalled by victories not less glorious; and once more hope returned to the ranks it seemed to have quitted forever.
In brunettes who have already borne children, the areola remains dark ever afterwards, so that this ceases to be a guide in all subsequent pregnancies.
Hunter both considered the areola as proof positive of pregnancy.
Montgomery mentions a case where the areola was almost black, and upwards of three inches in diameter.
On the seventh or eighth day the areola develops,--i.
About the eleventh or twelfth day the areola begins to fade, the constitutional symptoms to subside, and the pustule to dry up.
While this change is going on the redness of the macule forms an areola about the hard portion or central papule.
This areola tends to get smaller as the papule gets larger, and at last is completely lost.
In some places the general dark color of the skin blended with the areola surrounding the roots of the hair, so that one uniform black surface resulted.
In the early stages of its formation, at least a minute areola is of ten visible in the simple grain, and in each of the constituent parts of cells of the compound grain.
The punctured part began to spread, and there was the areola around the inoculated part to a considerable extent.
The drawing was made when the pustule was beginning to die away and the areola retiring from the centre.
This apical areola therefore, does not represent a spine-bearing areola, but the closed upper extremity of a tubercle groove.
In prismaticum and furfuraceum the groove is obliterated, but there usually remains a small (more or less tufted) areola and depression just behind the apex to mark its upper extremity.
In the latter genus the young tubercle bears on the summit of its pedicel-like lower portion the tufted flower-bearing areola the modified upper portion of the tubercle at that time appearing as a bract beneath the flower.
Echinocactus the flower-bearing areolabecomes adjacent to the spine-bearing areola and the flower appears at the summit of the tubercle.
The woolly groove of the Coryphantha extends from the spine-bearing areola to the axil of the tubercle, where it expands into the flower-bearing areola.
The lower half of the areola is fringed with a dozen or so threadlike bristles about two inches long.
The stem is studded with tubercles spirally arranged, and each crowned with an areola bearing a cluster of slender but stout spines, often hooked like the tines on a spear; and usually with hairs.
Then too, Nature has provided her favorite with finely barbed, stout stiff hairy spines, about one-eighth inch long, growing on the areola so as to resemble a small insect of the desert.
