280 



REPORTS ON THE STATE OP SCIENCE. 



Experiment 2, June 3. — To demonstrate that it is easier to kill by 

 chloroform-and-air than by chloroform-and-oxygen. Cat, 2'2 kilos., 

 anaesthesia in bell-jar by CHCh, 2 per cent, at 4'51. Cannulas in 

 trachea and carotid at 5 - 14. Anaesthetic mixtures of (1) chloroform- 

 and-oxygen, (2) chloroform-and-air inspired by animal from balance- 

 case through a Chauveau's cannula. 



516 (25th min.) 



5 20 (29th „ 



5-21 (30th „ 

 5-22 (31st „ 

 523 (32nd „ 

 5 24 (3 3rd „ 



5 25 (34th) „ 



5-26 (35th j „ 

 627 (S6thJ „ 

 5-28 (3Tth „ 

 5-29 (38th „ 



Fig. 9 



5-30 (39th „ 



581 (40th „ 

 5-32 (41st „ 

 5 33 (42nd „ 



5-34 (43rd „ 



535 (44th „ 

 5-36 (45th „ 

 5-37 (46th „ 

 538 (47th „ 

 [5-39 (48th \„ ) 



(Chloroform off \ 

 until corneal I 

 reflex was just f 

 perceptible j 

 ) CHC1 S 

 ) 

 ) 



| Chloroform on 



) \ (with air), i.e., 



{ oxygen 20 % 



— (Recovery) 



Fig. 10 1 5-40 (4 9th 



541 (50th J „ 

 5-42 (51st „ 



CHC1, 4% 



5% 

 5% 

 55% 

 5-5% 



fio/ f Respiration | 

 '° \ ceases j 

 6°/ 

 6% (Death) 



80 



85 

 100 

 130 



140 



140 



110 



90 



85 

 75 



60 



40 

 30 



The Dissociation of Oxy-Hcemoghbin at High Altitudes .—Report of the 

 Committee, consisting of Professor E. H. Starling (Chairman), 

 Mr. J. Barcroft (Secretary), and Dr. W. B. Hardy. 



The Committee appointed in 1909 were prepared to place the grant at 

 the disposal of the Secretary for the purpose of carrying out the investi- 

 gations in any suitable place; they expressed a preference, however, 

 in favour of the laboratory at Monte Rosa. It was found impossible 

 for the Secretary to carry out his intention of going there in the summer 

 of 1910, and therefore the grant has not been drawn. 



The Committee think it extremely desirable that the work should 

 be undertaken, but they realise that the progress which one person can 

 make with such a research in a few weeks, under the difficulties which 

 must necessarily be encountered, is very small. They have therefore 



