. Report of the fifty-fourth meeting of the British Association for the Advancement of Science [microform] : held at Montreal in August and September 1884. Congresses and conventions; Science; Congrès et conférences; Sciences. i Wi iii •84. iiErouT—1884. membrane has become thinner fi when the mucous membrane has become thinner owing to loss of the liniurr epithelium in disease (as in cholera), althou}rh the coiiditimis are thereby rendered more favourable for the osmotic prooesf, absorption from tlie interior of the intestine is either much diminished, or the How is entirely in the opposite d
. Report of the fifty-fourth meeting of the British Association for the Advancement of Science [microform] : held at Montreal in August and September 1884. Congresses and conventions; Science; Congrès et conférences; Sciences. i Wi iii •84. iiErouT—1884. membrane has become thinner fi when the mucous membrane has become thinner owing to loss of the liniurr epithelium in disease (as in cholera), althou}rh the coiiditimis are thereby rendered more favourable for the osmotic prooesf, absorption from tlie interior of the intestine is either much diminished, or the How is entirely in the opposite direction! and tiiis in spite of the fact that the blood and lymph arc of more tlinn normiil density. And, further, the osmotic theory has always failed to account foi' tliy absorption of substances such as fat, which, aUhoufjrh tiuely subdivided, are Hdt broup-ht into solution by the action of the digestive juices. In consequence of this the absorption of fat has always been treated of as a subject quite distinct from that of absorption of other nutritive matters, and has been explained by entiivjv diflerent theories. Finally, no attempt has been made to explain how and wliere the peptones which are formed in the alimentary canal are :^forraed into the proteids of the blood and lymph, although it is well known that these fluids contain no peptones, so that the transformation must have occurred in tlio passage from the intestine into them. I shall endeavour to show the process of absorption from the intestine is in all cases the same, and is not in all ^irobability a mere jrocess of osmosis, but that it is effected by and through the activity of proto])lasm. If this is really the case, the phenomena of intestinal absorption in the higher animals will be broujiht into close eqiuvaleuce with the processes of absorption and assimilation which occur in the simple Protozoa, with those of intercellular digestion which have been observed in many of the lower Metazoa,
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