From the Physiological Laboratory, University of Manitoba, Winnipeg', Canada. 



On the Relations between the „Islets of Langerhans" 

 and the zymogenous tubules of the Pancreas. 



By 

 Swale Yinceiit, 



M. B , D. Sc, Professor of Physiology in the University of Manitoba 



and 

 F. 1). T h o m p S o n 



University of Manitoba. 



(Plates IV, V.) 



Table of 



I. Introductory 61 



II. Normal histology of the Islets 



of Langerhans 63 



A. Mammals 63 



B. Birds 69 



C. Reptiles 71 



D. Amphibians . . . . 74 



E. Fishes 76 



III. Effects of inanition upon the 



pancreas . . . 81 



A. Mammalian .... 82 



B. Avian 83 



Contents. 



C. Amphibian . . . 



IV. Effects of exhaustion upon the 



mammalian f)ancreas 

 V. The reconstruction of alveoli 



from islets 



VI. Discussion of certain views as 

 to the morphology and physio- 

 logy of the islets of Langerhans 

 VII. Summary and conclusions . . 



Appendix 98 



VIII. Explanation of the plates . .100 



I. Introductory. 



We do not propose to give a full account of the history of the 



subject, as this lias been done so recently by Dale^), Diamare ^) 



and Helly^). What has to be said under this head will be found in 



the section entitled „Discussion of certain views . . . etc." towards 



1) Phil. Trans. Ser. B. Vol. 197, p. 25—46. London 1904. 

 -) Internat. Monatsschr. f. Anat. u. Physiol. Bd. XXII. 1905. 

 3) Arch. f. mikr. Anat. Bd. LXVII. S. 124. 1905. 



