REFERENCES 83 



ergot, tannic acid, sulphonal, atropine, agaricin, picrotoxin, pep- 

 tone, diastase, and eel serum. 



Nsegeli states that leucopenia occurs in the following conditions: 



(1) with lessened activity of the leucopoetic organs following a 

 lessened demand on the function, e. g., leucopenia in complete 

 inanition and the small leucocyte count in embryonal blood; 



(2) in lessened activity through insufficiency of function, e. g., 

 through the action of toxins, in typhus and in many cases of 

 cirrhosis of the liver and of anemia, and preagonal diminution; 



(3) in lessened function through anatomical destruction of con- 

 siderable mases of functional tissue, e. g., the lessened lymphocyte 

 count in tuberculosis of the lymphatic system and in destruction 

 of tissue following prolonged action of roentgen or radium rays; 



(4) through the action of capillary attraction after injections of 

 toxins and certain other substances, the materia peccans being 

 taken up by the leucocytes in the pulmonary and hepatic capil- 

 laries, thus producing an unequal distribution in the body which 

 lasts a short time, until an increased activity of the leucopoetic 

 organs supervenes; (5) with negative chemotaxis. 



REFERENCES 



1. Becker. Dculsch. Arch. f. klin. Med., lxx, 1901. 



2. Bignami. Cited by Ewing. 



3. Brixckerhoff and Tyzzer. On physiological leucocytoses of the 

 rabbit. Journ. of Med. Research, vii, 1902, p. 191. 



4. Buchneb, H. Die chemische Reizbarheit der Leukocyten und deren 

 Beziehung zur Entzundung und Eiterung. Berlin, klin. Woch., xxvii, 1890, 

 Nr. 47. 



5. Bucklers. Ueber den Zusammenhang der Vermehrung der eosinophilen 

 Zellen im Blute mit der Vorkommen der Charcot' chen Krystalle in den Faces 

 bei Wurmkrankheiten. Munch, med. Woch., xli, 1894, S. 22. 



6. Buffington, R. M. Clinical examination of the blood of the horse. 

 Thesis, N. Y. State Vet. College, 1905. 



7. Burnett and Traum. The clinical examination of the blood of the 

 dog. Proceed. Am. Vet. Med. Assn., xlii, 1905, p. 349. 



8. Derouaux, J. Sur quelques modifications du sang sous l'influence de 

 Tether. Arch. d. med. exper., xix, 1907, p. 478. 



9. Dimock and Thompson. Clinical examination of the blood of normal 

 cattle. Am. Vet. Rev., xxx, 1906, p. 553. 



10. Goldschneider und Jacob. Zeitsc.hr. f. klin. Med., xxv, H. 5 /6. 



11. Goddall, Gulland and Paton. Digestion leucocytosis in normal and 

 in spleenless dogs. Journ. of Physiol., xxx, 1903, p. 1. 



