maya bey 
"Tt is apparent from this experiment that large applications of sul-— 
phur to soils is effective in bringing about a considerable lowering 
of the pH in proportion to the amount applied. The small number of 
larvae and adults recovered in the checks and heavily sulphur—treat— 
ed cages may be due to the cannibalistic tendencies of larvae when 
large numbers are confined in a small area. These records show that 
68.9 per cent of the surviving larvae of 1950 in the treated cages trans— 
formed to adults during the fall of 1951. Ccmparing this percentage 
of adult recovery with a 70.5 per cent recovery in <5 tile cages which 
have been examined this fall and which contained soil slightly alkaline, 
it is evident that an acid medium does not hasten or retard larval 
development . The fact that 21 per cent were able to survive in acid 
soil intiles having an average pH of 4.01 and 3.62 and were subject— 
ed to a minimum pH of 2.8 and 1.8, respectively, for several months proves 
conclusively that even large amounts of sulphur are not toxic to any 
stage, including newly hatched larvae, nor does it prevent growth or 
pupation." 
According to F. H. Shirck, Parma, Idaho, observations on the depth 
of winter hibernation of wireworms were made "by sifting in successive 
i-inch layers the soil removed from a hole 16 inches wide by 3 feet long. 
* * * The top layer was frozen and had to be thawed out before sifting. 
No elaterids were found in it." It was found that 66 per cent of the 
larvae and all of the adults had hibernated at depths of 6 to 12 inches, 
and 35 per cent of the larvae at depths of 12 to 22 inches. The highest 
numbers of larvae were found at 8 to 12 inch depths where the soil mois—. 
ture was aS high as 7.6 per cent and the temperature ranged from 2° C. to 
zero. 
FOREST INSECTS 
F. P. Keen, Portland, Oreg., reports: "A 10—day meeting of the 
Forest Supervisors of the National Forests of Region 6 gave an oppor— 
tunity of laying the problems of forest insect control before this con— 
ference for consideration. This is the first general meeting of super— 
visors that has been held for eight years. The Ccmmittee cn Forest 
Management advocated the better training of the field men in matters 
of forest-insect control and the making available for them, in very 
brief form, information on the important insects. They recommended 
that this material be included in the Forest Management Manual. The 
committee, believing that the control of endemic infestation would pre— 
vent epidemics and the resulting heavy expenses for control, recommended 
that some experimental projects be started to determine whether such 
work was feasible." 
On December 22 T. T. Terrell returned to the Coeur d'Alene, Idaho, 
laboratory, from the Shoshone National Forest where, in cooperation 
with Mr. Donery, logging engineer of Region 2, he has been engaged since 

