230 ON THE PATHOLOGICAL MORPHOLOGY OF SOME ANIMAL FLUIDS. 



from an abscess of the liver thirty-four hours after death, consisted of an 

 envelope filled with the smallest molecules. Plate 10, fig. 63. Pus from 

 a wound suppurating torpidly for twenty years, with a base furnished 

 with hard and long granulations, was yellowish-white, contained a few 

 globules, and a great quantity of cells of epithelium in different states 

 of evolution. Plate 9, figs. 54, 55. 



Exudated purulent peritoneal fluid of a yellowish -green colour, besides 

 globules of pus with an envelope filled with small and large molecules, 

 contained other globules which were destitute of all covering, and trans- 

 parent, and of epithelium, beset with larger molecules. Plate 9, figs. 56, 

 58 ; Plate 10, fig. 59. 



The yellow flocculi swimming in peritoneal exudation, are composed 

 of coagulated fibrin, enclosing globules of pus. Plate 10, fig. 60. 

 Recent peritoneal exudation, Plate 9, fig. 56, contains globules whose 

 central vesicle is provided with the smallest molecules. 



OF VARIOLA. 



1. Modified Variola. 



Of the material changes which we find in the products of this patho- 

 logical process, some take place during the formation of papulae, or of 

 vesicles, and others during the formation of pustules. 



Being preceded by three days of inflammatory fever, the red spots, in 

 about twenty or thirty hours, appear changed into papulae ; and the 

 limpid fluid, in small quantity, which was extracted from the affected 

 epidermis, offered an alkaline re-action ; under the microscope, a few 

 larger, white, almost pellucid globules appeared in it, together with ani- 

 malcules composed of a globose or conoid trunk, very thin neck, which 

 was crowned with a small hook, with which they exercised a continu- 

 ous motion, by turning the neck forwards and backwards. Plate 9, 

 fig. 42. 



On the third day of the eruption, the limpid fluid extricated from the 

 papulae, contained, besides the molecules, a few pellucid globules, ex- 

 ceeding by two or three times the size of the blood globules, abounding 

 with primitive molecules, which scarcely exercised any molecular 

 motion. The animalcules, at one time curved, at another conoid or 

 cylindri-form, the hook being retracted, sometimes exercise a very 

 quick circular motion. Plate 8, fig. 31 ; Plate 9, fig. 43. 



The molecules without the globules are of different sizes ; the small- 

 est which are visible scarcely exceed the -^th, the larger T a 7 ^V^ 8 ' and 



