130 



Scientific Proceedings (59). 



Ablation of the cerebellum in the turtle does not give rise to 

 the same train of symptoms that is observed after labyrinthine 

 extirpation. We find, in agreement with Fano, 1 that the righting 

 reaction is not abolished by ablation of the cerebellum. There 

 was a small, scarcely noticeable, disturbance of coordination in 

 swimming, manifested most clearly in a slight awkardness in 

 approaching the side of the tank. Occasionally, lack of precision 

 of limb movements on the injured side was observed after uni- 

 lateral operations. One other symptom was that the animal was 

 rarely or never seen to swim deep in the water after cerebellar 

 removal. Our observations substantiate those of Fano, Bickel 2 

 and Sergi, 3 whose experiments were done on different genera of 

 turtles. 



The results on turtles are in substantial agreement also with 

 those of Steiner, 4 Loeb, 5 Bethe 6 and Corso, 7 who report no notice- 

 able motor disturbances in sharks (Scyllium) after cerebellar 

 ablation. 



It is clear that, in certain of the lower vertebrates, there is a 

 constant and striking difference between the effects of labyrinthine 

 and of cerebellar lesions, and it is equally clear that in these forms 

 the cerebellar connections of the labyrinth are not the important 

 connections. 8 



80 (897) 



The involvement of the blood and blood vessels in infantile 



scurvy. 



By Alfred F. Hess. 



[From the Research Laboratory, Board of Health, N. Y. City.] 



Infantile scurvy is a disease characterized by malnutrition, and 

 a tendency to bleeding, especially in the gums, and under the 



1 Fano, Archives italiennes de Biologic 1883, III, pp. 365-368. 



2 Bickel, Archiv fur [Anatomie und\ Physiologic 1901, pp. 52-80; pp. 495-498. 



3 Sergi, Arch, di Farmac. sper. e Sc. affin., 1905, IV, pp. 474-515. 



4 Steiner, Die Funktionen des Zentralnervensystems und ihre Phylogenese. II. 

 Die Fische; Braunschweig, 1888. 



1 Loeb, Archiv fiir die gesammte Physiologie, 189,1, L, pp. 68-85. 



6 Bethe, ibid., 1899, LXXVI, pp. 470-493. 



7 Corso, Archives italiennes de Biologie, 1895, XXII, p. xciv. 



8 Luciani, "Physiologie des Menschen," 1907, Bd. Ill, pp. 482-489. 



