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Rust-colored nets, with flannel shirts and trousers of yellow baize, were strung along most of the masts; and above this array of color, some gulls, apparently drunk with sunshine, were leisurely planing in wide circles, occasionally dropping for a moment into the sea, where the water was shivering and seething in blebs of light under the high noon.
The inflammation spreads rapidly, and there is formation of blebs with much itching. There is often great constitutional disturbance, nausea, vomiting, diarrhoea, and pains in the abdomen. The effects may last a week, and the skin may desquamate. =Primula obconica= is another plant which, when handled, gives rise to an acute dermatitis of an erysipelatous character.
If these gain access, in the course of a few days the damaged area of skin becomes of a greyish colour, blebs form on it, and it undergoes necrosis, leaving an unhealthy raw surface when the slough separates. Heat and prolonged exposure to the Röntgen rays or to radium emanations act in a similar way.
A sheet of ancient lava may be distinguished by its composition from the sediments among which it is imbedded. The direction of its flow lines may be noted. The cellular and slaggy surface where the pasty lava was distended by escaping steam is recognized by the amygdules which now fill the ancient steam blebs.
AMYGDULES. The steam blebs of lava flows are often drawn out from a spherical to an elliptical form resembling that of an almond, and after the rock has cooled these cavities are gradually filled with minerals deposited from solution by underground water. Amygdules are commonly composed of silica.
Wednesday, Feb 11th, 9:30 A. M., pulse 90, temp. not taken. Condition good. Ordered a laxative. Friday, Feb 13th, considerable inflammation over the left iliac crest, in the centre of which, a spot as large as the thumb nail, looks gangrenous. The inflammation extends over a surface as large as the two hands. Some bullae or blebs have formed in the vicinity of the gangrenous spot.
The streptococci are found most abundantly in the lymph spaces just beyond the swollen margin of the inflammatory area, and in the serous blebs which sometimes form on the surface. #Clinical Features.# Facial erysipelas is the commonest clinical variety, infection usually occurring through some slight abrasion in the region of the mouth or nose, or from an operation wound in this area.
After the Keweenawan was uplifted to form land, percolating waters leached out much of the copper diffused in the lava sheets and deposited it within steam blebs as amygdules of native copper, in cracks and fissures, and especially as a cement, or matrix, in the interbedded gravels which formed the chief aquifers of the region.
Their constituent minerals had ample opportunity to sort themselves and crystallize from the fluid mixture, and none of that mixture was left to congeal as a glassy paste. They consolidated also under pressure. They are never scoriaceous, for the steam with which they were charged was not allowed to expand and distend them with steam blebs.
When the primary focus is in the deeper tissues, the constitutional disturbance is aggravated, while the local signs are delayed, and only become prominent when pus forms and approaches the surface. It is not uncommon for blebs containing dark serous fluid to form on the skin.
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