Scientific Proceedings. 



3i 



third week. At this time embryonic trichinae are in process of 

 transmission from the intestinal mucosa, by way of the lymphatic 

 vessels and the blood through the lungs, to the vascular system. 



Eosinophile cells accumulate in the mesenteric lymph glands 

 and in the lungs, and form foci resembling small abscesses, in 

 which polynuclear leukocytes are replaced by eosinophile cells. 

 These cells are provided with polymorphous nuclei and do not 

 differ from the eosinophile leukocytes of the circulating blood. 

 Accumulation of the eosinophile cells in the mesenteric lymph 

 glands and in the lungs is explained by the transmission of the 

 embryonic parasites through these organs. 



Increase of eosinophile cells in the blood and in other organs 

 is accompanied by characteristic changes in the bone marrow. 

 The fat is diminished in amount and cellular elements replace it. 

 Cells with eosinophile granulation are present in immense number 

 and particularly numerous are the eosinophile myelocytes, cells 

 peculiar to the bone marrow. Eosinophile cells undergoing 

 mitotic division are more numerous than usual. 



The number of eosinophile leukocytes in the blood always di- 

 minishes before death, so that the proportion is usually less than 

 1 per cent. Infection with a very large number of trichinae causes 

 a rapid diminution of the number of eosinophile leukocytes, and 

 is quickly fatal. The eosinophile cells of the bone marrow exhibit 

 degenerative changes, of which nuclear fragmentation is most 

 characteristic. Similar changes may affect the eosinophile cells 

 of the intestinal mucosa and of the mesenteric lymph glands. 

 Mild infection stimulates the eosinophile cells to multiplication, 

 but severe infection causes their destruction. 



30. " Subcortical expressive reflexes and their spinal path- 

 ways" : ROBERT S. WOODWORTH. 



The author reported on some experiments done in collabora- 

 tion with Professor Sherrington in the latter' s laboratory. It 

 was shown that in a recently decerebrated cat, powerful sensory 

 stimuli evoked reactions such as in a normal animal would be ex- 

 pressive of pain, anger, and other similar emotions. Such reac- 

 tions are therefore primarily subcortical reflexes and not dependent 

 on the organ of consciousness. The " ether cry " also appeared 

 in decerebrate animals. The sensory spinal pathway, by which 



