PROCURING OBJECTS. 109 



rated from the rest. A similar instance came under the 

 author's own observation, in a thin slice from the kidney of a 

 mouse, which had been dead for some hours. An account of 

 it was published in the Philadelphia Medical Examiner for 

 December, 1851, pp. 767-770. 



The frontispiece represents some of the forms in which the 

 capillaries are arranged. Fig. 1, represents the injected capil- 

 laries of muscular tissue, after Gerber, and a preparation of the 

 author's. 



Fig. 2. Injected lobules of adipose tissue, from the skin of 

 a pigeon : the lower part of the figure shows a portion of the 

 same, magnified 200 diameters, from Quekett's Histology. 



Fig. 3, is a vertical section of the injected skin of a dog's 

 foot, showing the vessels of the sensitive papillae, and of the 

 adipose tissue beneath. From an injection by Topping, in the 

 author's possession. 



Fig. 4, exhibits a small piece of injected mucous membrane, 

 from the small intestine of man. The villi appear to lie flat, 

 on account of the preparation being mounted in balsam and 

 covered with thin glass. This is one of the most beautiful of 

 the author's preparations. Not only are the villi well injected, 

 but a conglomeration of flask-like creca, or glands, are well seen, 

 having the minute vessels which ramify upon their sides exhibited. 



Fig. 5, is from a specimen of injected liver, by Topping. 



Fig. 6, represents the capillary vessels which ramify among 

 the air-cells (sections of bronchial tubes ?) in the human lung. 



Fig. 7. Injected papillae of the tongue. 



Fig. 8. Injected ciliary processes of the eye. 



Fig. 9. Injected Malpighian bodies from the kidney. 



Fig. 10. The muscular coat of the small intestine, from 

 Gerber, after Lieberkiihn. 



Figures 11 and 12, represent the most common modes of termi- 

 nation of the arteries, either looped or branching after Q-erber. 



10 



