April, '08] JOURNAL OP ECONOMIC ENTOMOLOGY 101 



6 Distribution of Species^ Continued. 6 Distribution of Species^ Continued. 



63 Dispersion (spread) of spe- 63 Dispersion (spread) of spe- 

 cies, cies. 



63.114 When going into hiber- 63.221 Cars. 



nation. 63.222 Barrels and other con- 



63.115 Seasonal influence upon tainers. 



taking flight. 63.223 Harvesting apparatus. 



63.12 By crawling. 63.23 By movement of carriers only 



63.13 By winds and storms. accidentally related to pest. 



63.14 By water along waterways. 63.231 Vehicles passing infested 



63.15 By floods and overflows. fields or near plants. 



63.16 By artificial carriers, not 



hosts. 7 Collection. 



63.17 By movement of hosts as car- 71 Classification. (Orders alpha- 

 riers. betically.) 



63.2 By artificial agencies. 72. Accessions catalog. 



63.21 By shipments of infested ma- 73 Species catalog:. 



terials. 74 Description list, nevr species 



63.22 By movement of containers described. 



which have carried infested 75 Type list and disposition of 

 materials. types. 



In discussing the paper Mr. Hunter stated that the system described 

 was a modification of the one used by Mr. Quaintance and was espe- 

 cially valuable in cases where a large amount of data on an insect must 

 be kept so that it can be available for easy reference. 



Mr. Felt preferred to use a method that was simpler than the Dewey 

 system, as it took considerable time to train assistants so they could 

 use it to advantage. By means of the system in his office it was impos- 

 sible to lose any of the note sheets. 



Mr. Hart stated that there is little danger of losing sheets or cards. 

 The system in use in Dr. Forbes' office is essentially somewhat similar 

 but not numerical. The great advantage of the system described by 

 Mr. Bishopp is in keeping before the eye the points which should be 

 investigated. 



Mr. J. L. Phillips considers the Dewey system a valuable one for 

 arranging correspondence for easy reference. He uses a modification 

 of this system, arranging the counties alphabetically, as well as giving 

 each county and correspondent a number and using decimals to make 

 further sub-divisions for each county. This method is specially val- 

 uable where it is necessary to keep in touch with a large number of 

 county inspectors and persons in the inspectors' territory who write 

 about this line of work. Under such a system it is easy to refer at 

 once to the correspondence on this subject with people in any county 

 without going to the card index. All this correspondence can be taken 

 out of the files, examined and returned in a few minutes, while under 

 other systems it would be necessary to keep a cross index, and the cor- 



