. The cyclopædia of anatomy and physiology. Anatomy; Physiology; Zoology. 7-48 NUTRITION. Ilaller; but it has been generally overlooked by subsequent physiologists, until attention was drawn to it by the enquiries of Messrs. Addison, Gulliver, and others. It is in the buff'y coat, however, that the fibrous arrangement is best seen; on account, as it would appear, of the stronger attraction which the particles of fibrin have for one another, when its vitality has been raised by the increased elaboration to which it has been subjected. That there are varieties of plasticity in the substance, whi
. The cyclopædia of anatomy and physiology. Anatomy; Physiology; Zoology. 7-48 NUTRITION. Ilaller; but it has been generally overlooked by subsequent physiologists, until attention was drawn to it by the enquiries of Messrs. Addison, Gulliver, and others. It is in the buff'y coat, however, that the fibrous arrangement is best seen; on account, as it would appear, of the stronger attraction which the particles of fibrin have for one another, when its vitality has been raised by the increased elaboration to which it has been subjected. That there are varieties of plasticity in the substance, which, on account of its power of spontaneously coagulating, we must still call Jibrin, appears from this fact among others,—that, in tuberculous subjects, the quantity of fibrin in the blood is higher than usual (Andral and Gavarret), although its plasticity is certainly below par. It is easy to understand, that its plasticity may be increased as that it may be diminished ; and this either in the general mass of the blood, or in a local de- posit. In fact, the adhesions which are formed by the consolidation of coagulable lymph,—or in other words, of liquor sanguinis, whose plas- ticity has been heightened by the vital actions of the white corpuscles in the capillaries of the part on which it has been effused,—often acquire very considerable firmness, before any vessels have penetrated them ; and this firmness must depend upon that mutual attraction of the particles for one another, which in up ladle de- posits is altogether wanting, and which in caco-plastic deposits is deficient. A very inte- resting example of a structure entirely composed of matted fibres, and evidently originating in the simple consolidation of fibrin, has lately been discovered by the writer. This is found in the membrane adherent to the interior of the egg-shell (membrana putaminis); and also in that which forms the basis of the egg-shell itself. Between the two, there is no essential difference; as
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