LIST OF ILLUSTRATIONS XXI 



FIGURE PAGE 



356. A group of mucous acini, from the human submaxillary gland . 386 



357. From the sublingual gland of man ...... 387 



358. Mucous acini of the retrolingual gland of the rat .... 388 



359. Diagram of the arrangement of the cells in a mixed salivary gland 389 

 360. Diagrams of A, parotid gland; B, submaxillary gland; C, sublingual 



gland; and D, pancreas ....... r~ 389 



361. From a section of the human parotid gland .... 390 



362. From a section of the human submaxillary gland . . . 391 



363. Reconstruction model of the sublingual gland of man . . . 392 



364. Nerve endings in a salivary gland 393 



365. Early stages in the development of the pancreas, illustrating condi- 

 tions in the 5 and 7 weeks old human embryos . . . 394 

 366. From a section of the human pancreas, showing several lobules and 



the broad interlobular bands of connective tissue . . . 395 

 367. Drawing of an intercalary duct with three branches ending in acini 



to form centro-acinial cell groups ...... 396 



368. Reconstruction model of the human pancreas .... 396 



369. Acini of the human pancreas 397 



370. Pancreatic acinus of cat cut transversely near fundus, showing the 



basal (prozymogen) filaments of the cells .... 398 



371. Cells from pancreas of Necturus ...... 399 



372. Two adjacent acini from the guinea-pig's pancreas . . . 399 

 373. Section of an acinus from the guinea-pig's pancreas, showing the 



basal mitochondrial content and the central zymogen granules . 400 

 374. Intercalary duct with branches, from pancreas of guinea-pig, 

 showing highly branched tubules connected with the duct and 



with the islet 400 



375. Pancreatic islet 401 



376. From the human pancreas ....... 402 



377. Section of a pancreatic islet from injected specimen of cat's pancreas 



to show the profuse blood supply .'.""'. . . . . 404 



378. A lobule of the pig's liver; the central vein lies in the middle of the 



figure . .... 405 



379. Diagram of liver lobules, the upper two cut transversely, the lower 



longitudinally ......... 406 



380. From a section of the turtle's liver, showing the tubular arrange- 

 ment of the parenchyma ....... 407 



381. The reticulum of the dog's liver ...... 408 



382. Stellate cells of von Kupffer in the liver of a dog . . 409 

 383. A lobule of the pig's liver in longitudinal section, showing the rela- 

 tion of the central and sublobular veins and the arrangement 

 of the hepatic cells . . . . . . . .410 



384. A lobule of the human liver, seen in transection . 411 



