IN RELATION TO EVAPORATION. 



113 



July 12. No. 1 had lost 39-0 grs., or 487 per cent. 



„ „ 2 



>J 



37-60 „ 45-5 



13. „ 1 



)> 



51-90 , 



64-9 



„ „ 2 



>> 



54-00 „ 65-2 



17. „ 1 



f) 



53-07 , 



663 



„ ., 2 



»i 



56-85 , 



, 69-0 



Neither sustained any further loss from exposure. The thermometer during the 

 time ranged from 65° to 68°. 



4. The Rabbit (Lepus cuniculus). From a wild one recently killed the skin was 

 removed from the under surface of one ear and left on the upper ; it (No. 1) 

 weighed 34'5 grs. Of the other (No. 2) the skin was left on both surfaces ; this 

 weighed 43 1 grs. They were placed on a stove, side by side, the under surface 

 of each uppermost ; a thermometer close to them was 93°. 



In 1 hour 35 minutes No. 1 had lost 15-5 grs., or 44-9 per cent. It has become rigid. 



It is rigid only at its edge. 



„ 3 



, 35 



„ 10 



, 35 



„ 24 „ 



„ „ „ o 



2 



34 „ 7'8 



1 , 



19-1 



, 55-2 



2 , 



6-0 



, 13-9 



1 , 



20-9 



, 60-5 



2 , 



8-5 



, 19-7 



1 



22-3 , 



, 64-6 



2 , 



16-2 , 



, 37-6 



No. 1 sustained no further loss ; No. 2 continued to lose weight, gradually dimi- 

 nishing in flexibility up to 289 hours, when it had lost 28*1 grs., or 65 - 2 per cent., 

 and had become hard and rigid. 



5. The Hare (L. timidus). On the 5th November, from a hare recently killed, 

 one ear (No. 1) was immersed in boiling water for a minute, after which, when 

 cold, the integument was easily removed, this from the outer surface only ; it 

 weighed 81*8 grs. On the other ear (No. 2) the integuments were left entire; 

 it weighed 1097 grs. They were placed on paper on a stove, when the tempera- 

 ture was about 100°. 



In 20 hours No. 1 had lost 57 grs., or 69-6 per cent. It had become shrivelled and hard. 



>> 



„ It sustained no further loss. 



„ Is still tolerably soft and supple. 



„ Suppleness much impaired. 



„ It is now hard and little flexible. 



It should be mentioned that it was only by day that the temperature was kept 

 up to about 100°. 



6. The Pig (Sus vulgaris). As soon as killed, March 24th, a ligature was 

 applied to one ear, and the portion included cut off; it (No. 1) weighed 1285 grs. 

 From the other ear a portion similarly included (No. 2) was cut off ; after the 

 application of boiling water and the removal of the cuticle, it weighed 159 grs. 

 They were suspended fully exposed to the air. 



)) >> 



» 2 



7-7 



>? 



7-0 



24 „ 



„ 1 



57-8 



>) 



70-6 



)» )> 



„ 2 



37-5 



)> 



34-2 



48 „ 



„ 2 



47-7 



)3 



43 5 



72 „ 



„ 2 



58-9 



}> 



53-7 



96 „ 



„ 2 ; 



61-5 



>> 



56- 



192 „ 



„ 2 



67-6 



}> 



61-6 



