388 R. R. BENSLE7. 



existing between these and the pyloric gland cells on the one 

 hand, and the cardiac glands on the other, will be discussed in 

 a second paper now in course of preparation. 



EXPLANATION OF PLATE 29, 



Illustrating Mr. R. R. Bensley's paper on '' The Structure of 

 the Mammalian Gastric Glands." 



Note. — All figures are drawn with tlie aid of the camera lucida, and, witli 

 the exception of fii^s. 1 and 7, as seen under the Zeiss apociiromatic objective 

 (2 mm, apert.) and compensation ocular 8. In fig. 7 the same objective and 

 compensation ocular 4 were employed. Figs. 2, 3, 11, and 12 are reproduced 

 from grey pencil drawings, and do not indicate the colours of the original 

 preparations. 



Fig. 1. — A photomicrograph of a fresh unstained section of the mucosa of 

 the greater curvature of the stomach of the cat. 



Fig. 2. — Transverse sections of the lower ends of three fundus glands of 

 the cat after a fast of twenty-four hours' duration ; lisematoxylin and eosin. 



Fig. 3. — Transverse sections of the lower ends of three fundus glands of 

 a digesting cat, stained in hpematoxylin and eosin. a. Indulinopliilous nuicin- 

 secreting cells. All other chief cells show a deeply staining outer zone with 

 coarse fibrillar structure. 



Fig. 4. — Fundus gland from a digesting cat, stained in gentian violet. The 

 outer prozyniogen-holding zone stains nietachromatically. 



Fig. 5. — Fundus gland of cat fixed in alcoiiol. Section treated with sul- 

 phuric acid alcohol, then with aqueous bsematoxylin, and finally stained faintly 

 in safranin. The prozymogen-holding outer zone gives a strong reaction for 

 iron, which has been unmasked by the action of the acid alcohol. 



Fig. 0. — Vertical section of the duct, neck, and upper portion of the body 

 of a fundus gland of a fasting cat ; indulin, eosin, and aurantia. «, b. Mucin- 

 secreling chief cells of the neck. d. Ferment-secreting chief cells of the 

 body of the gland. /. Mucin-secreting cell of the body of the gland. 



Fig. 7. — Pyloric gland of cat after a fast of twenty-four hours' duration; 

 indulin and eosin. a. Duct. b. Intermediate |)ortion. c. Body of gland. 

 Exhibits the gradual transition in passing from the body of the gland to the 

 duct. 



