226 TAS. J. SIMPSON—ENTOMOLOGICAL 
Launches and Steamers.—The mosquito-proofing by wire gauze of all saloons 
and cabins in vessels plying on the river is strongly to be recommended. A very 
good example of what can be done in this respect at very little expense and with- 
out in any way interfering with the utility of the vessel, is seen in the surveying- 
launch “ Rose” (fig. 13). 
239 SS St es ce 
5 eS 
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SS 
Fig. 13.—Surveying-launch “ Rose *’—to show effective mosquito-proofing. 
Camp for Horses——There are always a number of horses in Bathurst suffering 
from trypanosomiasis, and these are a source of danger to the uninfected horses. 
In addition to this, others are continually being brought down the river to 
Bathurst. It might be well therefore to have some sort of segregation stable 
erected in an open clearing about half a mile from Bathurst, where all infected 
and suspected cases could be segregated until pronounced free from trypano- 
somiasis. This method has been adopted elsewhere on the West Coast and has 
been found to reduce considerably the percentage of infected horses in these 
places. 
Instruction of Natives, 
It is of the utmost importance that every endeavour 
should be made to instruct the natives in the connection between certain insects 
and disease in man and animals, and also as to the means, such as clearing, 
whereby the number of these insects may be reduced, with a consequent benefit 
both to themselves and their herds. 
In conclusion, I wish to take this opportunity of expressing my indebtedness 
to His Excellency the Governor, Sir George Denton, K.C.M.G., for the interest 
he took in this investigation, and for the many facilities afforded me in carrying 
out the work expeditiously ; to Colonel C. W. O’Brien, C.M.G., for his many 
personal kindnesses and his untiring efforts to further the investigation; to 
Dr. T. Hood, the Senior Medical Officer, for his hospitality and his suggestions, 
based on a wide personal experience of the Colony; and also to the other 
Officers whom I met both socially and officially, through whose advice and help 
delay and loss of time were reduced to a minimum. 
