304 Dr. A. Rattray on the Effects of [Feb. 16, 



creased ingesta towards the end of both experiments could not prevent 

 these results ; nor is the difference between the two seasons ascribable to 

 a material dissimilarity in the quantity of the food. 



Table IV. — To show the effect of Season in the Tropics on weight. 



Cool and Dry. S.E. Monsoon. 



Average tenperature at Cape York 82° F. 



1st weighing, April 11, 1865, on entering tropics, 1 f 46 in the tropics, 



2nd „ June 23, 1865, on quitting tropics, J a ^ s \ 27 in temperate zone. 



Salt meat issued on 62 days. [ Food turned per man daily 



(with 55 lime-iuice days) A . r r , , -, ' * t' 



Fresh meat issued on...... 11 „ Average of first week .. . I ll 8| 



L „ last „ ... 1 15 4-j- 



Age. 



Total 

 number 

 weighed. 



Number 

 and 

 percentage 

 unchanged. 



Number 

 and 

 percentage 

 Avho gained. 



Range 



of 

 gain. 



Ave- 

 rage 

 gain. 



Number 

 and 

 percentage 

 who lost. 



Range 



of 

 loss. 



Ave- 

 rage 

 loss. 



15 to 25 



25 „ 35 

 35 „ 45 

 45 „ 55 



37 

 32 

 9 

 1 



per cent. 

 2=5-41 

 1=3-13 

 1 = 1-11 

 1 = 100 



per cent. 

 22=59-5 

 14=43-75 

 3= 3-33 



lb. 



1- 12 



2- 14 



3- 7 



lb. 



4- 36 



5- 36 



5 



per cent. 

 13=35-14 

 17=53-12 

 5= 5-55 



lb. 



1-9 

 1-12 

 1-9 



lb. 



2- 61 



3- 94 

 3-8 

















Totals 

 and per- 

 centages. 



79 



5=6-32 



39=49-37 



1-14 



4-77 



35=44-30 



1-12 



315 





44=55-69 percent. 













Table V. — To show the effect of Season in the Tropics on weight. 



Wet and Sultry. N.W. Monsoon. 



Average temperature at Cape York 87° F. 



1st weighing, November 25, 1864, on entering tropics, \ g f 54 in the tropics, 



2nd „ February 9, 1865, on quitting tropics-, J ' ^ \ 22 in temp. zone. 



Salt meat issued on 70 days f Food consumed per man daily 



(with 60 lime-juice days) 

 Fresh meat issued on 6 



lb. oz. drs. 

 Average of first week ... 1 10 1 

 last „ ... 1 14 2 



Age. 



Total 

 number 

 weighed. 



Number 



and 

 percentage 

 unchanged. 



Number 

 and 

 percentage 

 who gained. 



Eange 



of 

 gain. 



Ave- 

 rage 

 gain. 



Number 

 and 

 percentage 

 who lost. 



Range 



of 

 loss. 



Ave- 

 rage 

 less. 



15 to 25 

 25 „ 35 

 35 „ 45 

 45 „ 55 



49 

 34 

 9 

 1 



per cent. 

 8=16-33 

 2= 5-88 

 1= Ml 

 1 = 100 



per cent. 

 5 = 10-2 

 5 = 14-71 



lb. 



1-5 

 1-8 



lb. 



2- 2 



3- 4 



per cent. 

 36=73-47 

 27=79-41 

 8=88-88 



lb. 

 1-16 

 1-16 

 4-20 



lb. 



6 

 8 



9-62 





















Totals 

 and per- 

 centages 



93 



12=1291 



10=10-75 



1-8 



1-8 



71=76-34 



1-20 



7-15 



22=23-65 per cent. 



