144 



Carpophiloiis beetles are very common, and these, no doubt, 

 spread the Thiclaviopsis, as is the case with this fungus in cane 

 fields. If old stumps and worthless fruit were promptly de- 

 stroyed, the beetles would be less harmful in spreading this 

 fungus. 



Flies are very common about the canneries, and no doubt 

 serve to spread some of the diseases, as noted on pages 13"-131 

 It is very difficidt to see how they can be kept out of the can- 

 neries without expensive screening. The neighboring stables 

 are fine breeding places for flies. The dung heaps should be 

 screened, or, at any rate, so treated as to reduce the flies. This 

 is an operation that will amply repay the cost. 



= Q- 



3 O 

 u 



Table 



Fig. 9. Sketch of a caliper for tinned fruit. 



In the course of my investigations on tinned fruit it has been necessary to know 

 what tins were swelling, and the rate of swelling. The accompanying figure will illus- 

 trate the nature of an apparatus I have devised for this purpose. It is simply an 

 application of the ordinary, spring micrometer caliper. Such an instrument may 

 be of use in pineapple canneries, and for that reason the illustration has been in- 

 serted. The tin to be adjusted is placed on a base which fits it and holds it in 

 such a position that one end of the caliper lever touches the center of the top of 

 the tin. It is necessary that this adjustment be such that whenever a tin is rein- 

 serted in the apparatus, so long the tin remains constant the caliper point will as- 

 sume its former position. The apparatus will be readily understood from the let- 

 tering. The caliper lever is pivoted so that the short arm is next the tin to be 

 tested and this arm may be made any number of times shorter than the long arm 

 which swings past the scale. The scale may be arbitrary or it mav be made to 

 indicate a given length of tin, the zero of the scale being naturallv the upper sur- 

 face of the baseboard which receives the tin. The apparatus should be constructed 

 of light metal and be of such character as to be permanently accurate. It need not 

 be expensive. Such an instrument would be of use to the Manager of a cannery 

 in investigating the rate at which tins of pineapiile change owing to the various 

 circumstances that occur during the manufacture and trade in his product. 



COLLEGE OE AGRICULTURE 



ARTS. 



AND MECHANICAL 



APPOINTMENT OF THE BOARD OF REGENTS, 



The Governor has appointed the following Regents of the College 

 of Agriculture, who have been confirmed by the Senate: Messrs. 

 W. G. Smith and A. Gartley for the term of three years; Messrs. 

 Marston Campbell and C. F". Eckart for two years and the Hon. 

 H. E. Cooper for one year. 



