312 



consecutive days and causes little or no inconvenience to the 

 patient. Since the treatment^ involves the use of an unattenuated 

 virus the dogs are held for observation for 30 days after the last 

 injection as a precaution. No cases have been recorded of dogs 

 developing rabies as a result of this vaccination and it has been 

 used with signal success during the past few years on thousands 

 of animals bitten by rabid w^olves and dogs in the United States. 

 The amended rule appears on the By Authority page in this 

 issue. 



C. S. J. 



EXHIBIT AT THE MAUI COUNTY FAIR. 



By CHAS. J. KRAEBEL, 

 Assistant Superintendent of Forestry. 



The Board of Agriculture and Forestry was represented at the 

 Maui County Fair this year on October 21 to 23, by a substantial 

 exhibit, nearly one-fifth of the entire space in the Agricultural 

 Building having been allotted to our use. The spirit of the exhibit 

 was educational, with the idea of showing the various lines of 

 work controlled by the Board. 



The Divisions of Entomology and Plant Inspection combined 

 their material in a display along twenty feet of table and wall 

 space opposite the Forestry exhibit, which occupied the middle 

 of the building. Arranged on the side table and suspended from 

 the wall were trays of carefully mounted insects injurious to 

 the various fruits and crops of Hawaii, along with other insects 

 which are parasitic upon these pests. A series of hand-colored 

 plates pictured some of the plant diseases which are kept out of 

 Hawaii by rigid inspection of imported plants and seeds. Fifteen 

 small cases of mounted leaf sections illustrated the kinds of dani- 

 age done by scale insects to such plants as the pineapple, pigeon 

 pea, coffee, croton and others. Of the large insect cases, one was 

 devoted entirely to sweet potato insects, showing the weevils, leal 

 roller, sphinx moth and cut-worms which infest that important 

 food plant. A case of "agricultural insects" contained fern and 

 mango weevils, powder post beetles, coconut leaf roller and the 

 malicious Koa pod borer. This Koa insect destroys annually 

 probably ninety per cent of the Koa seed crop, thus making it 

 both difficult and costly for the Forest Nurseryman to get enough 

 seed for reforestation purposes. Fruit flies, melon fly, leaf hop- 

 pers, cotton, corn, potato and bean insects, plant lice and dung 

 flies — all were displayed in neat cases carefully labelled, and with 

 each of these destructive pests was shown the insect or insects 

 which have been found to be predaceous upon that particular pest. 

 Considerable interest Wias shown by many visitors in these 

 parasitic insects and in the explanations of the work of parasitic 

 propagation carried on by the Division of Entomology. The im- 



