CLIMATE. 369 



1883. At Ugi and Santa Anna, E.S.E. to S.E. strong. 



In Bougainville Straits, calms, and light E. to S.E. winds. 



1884, In Bougainville Straits, first part light S.E. winds and lioavy rain- 



squalls from N.E. ; latter part fresh S.S.E. and dirty weather, 

 followed by light N. to E. winds. 



October. 



1882. At Ugi, Santa Anna, and off the north coast of Guadalcanar ; in first 



part, strong S.E. ; in latter part, easterly winds with calms. 

 At Ugi, S.E. in first half, variable with calms in latter half. 



1883. At Ugi and Santa Anna, S.E., fresh. 



In Bougainville Straits, first part S.E. to S. ; latter part N.E. to 

 S.E., squalls and tliunderstorms. 



1884. In Bougainville Straits ; first week, light N.E. to S.E. winds ; second 



week, S.S.E. to S., force 2 to 4 ; third week, N.W. to N.N.E., force 

 3 to 8, rain-squalls and thunderstorms ; last part, variable and 

 E.S.E. winds. 



November. 



1882. At Ugi and Santa Anna; first half, N.W. and S.E. ; latter half, S.E. 



and variable. 



1883. At Ugi and Santa Anna, fresh E.S.E. to S.E ; northerly towards end 



of mouth with squalls and thunderstorms. 



December. 



1882. At Ugi and Santa Anna, westerly and variable; S.E. for 6 days: 



latter part, squally. 

 18S3. At Ugi and Santa Anna ; in first half, E. to S.E. ; in latter half, 



N.W. to S.W. and squally. 



THE EFFECTS OF THE CLDIATE ON THE WEIGHT 



OF THE BODY. 



During the last two surveying-seasons in these islands, the officers and 

 crew were weighed with the object of determining the effect of service in 

 this climate on the body-wciLrht. The period spent in this region during 

 each year extended from April to November. 



After eliminating vaiious sources of error, such as sickness, immaturity, 

 etc., I find that during tlie surveying-sca'^on of 1883, which occupied be- 

 tween 6^ and 7 mouths, eigliteen out of twenty persons lost weight, the 

 average loss being 6^ lb-=., and the range of the loss 1 to 12 lbs. Of the 

 two exceptions, one gained 3 lbs. and the other experienced no change. On 

 returning to the colonics, we spent between 3 and 4 months in tlie gonia'i 

 climate of northern New Zealand, at tlie end of which period I fir.d that 

 the average gain of weight wasabout 6|- lbs. In other words, the loss was 

 regained. 



During the season of 1SS4, which lasted 7 months, eleven out of the 

 twenty persons weighed in the previous year were alone available for these 

 observations. All of thom lost wc'glit, the average loss being 5j lbs., and 

 the range 1 to 8 lbs. This diminution in the aveiage ]o.ss of weight dur- 



2a 



