various Altitudes, in connexion with the act of Ascending. 337 



Finally, if food can be taken on the sickness first coming on, 

 it will be found very useful to arrest or relieve the illness. 



The best precaution to take against mountain-sickness is 

 obviously to eat plenty of good substantial food, and to repeat 

 the meals at short intervals. Should the appetite fail, I think it 

 best to endeavour to take a little food as often as possible. 



Temperature of the Body at increasing Altitudes in the state of 



rest. 



Height in metres. Temp, under 



(1 metre =3 feet 3f inches very nearly.) the tongue. 



1050. Chamounix, before breakfast 36"2 



1050. Same experiment another day 36'3 



1050. Charnounix, immediately after breakfast .. 36'5 

 1050. Chamounix, £ of an hour after breakfast . . 36' 1 

 1050. Chamounix, sitting on way down from Cha- "1 or. * 



blettes, fasting J 



1215. Courmayeur, before dinner 36'6 



1215. Courraayeur, 1 hour after dinner 36"8 



About 1320. (Chamounix) Cascade de Blaitiere, about 2\ 1 ^.^ 



hours after luncheon J 



About 15(35. Chalet des Chablettes, before breakfast .. 36\3 



„ ,, ,, after breakfast .... 36'9 



About 1621. Above Montanvert, afterrapid descent, fasting 3/'0 



About 1869. Ascent to Pavilion du Mont Frety, riding. . 36*4 



2080. Planpraz, fasting (4 hours after breakfast). 35' 6 



2197. ^ an hour after arrival at Pavilion du Mont \ ^q.q 



Frety, fasting , J 



2197. Mont Frety, after sickness, fasting 36*0 



3050. Cabane des Grands Mulcts, resting, and"! oy.i 



about 2| hours after meal J 



3050. Cabane des Grands Mulets, 2 a.m., before \on. 5 



breakfast J 



33G2. Summit, Col du Geant, after 8 minutes' rest, "1 o/*.q 



and fasting J 



4000. Grand Plateau, A\ hours after light breakfast. 36"3 

 4672. Crete of the Bosse du Dromadaire, after 8 j 



minutes' rest, last meal about 3 hours \ 37*1 



before on Grand Plateau J 



Mean 366 



Twenty observations. 



Extremes 



.37/1 



J 36'0 omitting the experiment at Planpraz, 



~~ VI 



