EXPEEIMENT STATION REPORT. 633 



been completed by Mr. Richards. There was plenty of water on 

 the undrained meadow and young larvse of brood 7 were in evi- 

 dence. Five days .later it was seen that cleaning and relieving 

 Great ditch had helped the meadow greatly and had taken off 

 many tons of water. Brood 7 was nearing the pnpal stage and 

 l>romised to be much smaller than 6. It matured August 31st, was 

 05 per cent. soUicitmnsi to 35 per cent, caniaior, and did not seem 

 inclined to migrate. Fully 90 per cent, reanained in thei meadow 

 and the balance did not get further west than l^orth Elizabeth. 



September 8th, the work of clearing Great ditch and cutting the 

 new ditch to connect with Woodruff creek was making good head- 

 way and another brood of larvas was found in the pools, the eighth 

 of the season. The meadow was in a normal condition, i, e., on 

 the imdrained portion about 75 per cent, of the depressions con- 

 tained water and about half of these were filled with wrigglers, the 

 balance containing "killies." A week later brood 8 was nearly 

 mature, but had been* much reduced by the drying out of pools. 

 September 18th it was on the wing, 70 per cent. soUicitans to 30 

 per cent, cantator. Most of these remained on the marshes and few 

 got further inland than I^orth Elizabeth. 



Septemher 27th, brood 9 was found to be well atlvanced, and on 

 October 2d it was on the wing, a ver^^ small one, because the high 

 tide of September 22d had brought in "killies" enough to clean out 

 every infested pool that was reached. Ninety per cent, of these 

 insects were solllcitams, 9 per cent, were cantator and 1 per cent, 

 was salinarms, the first appearance of this species for the season 

 in appireciable numbers. This was another stay-at-home brood, and 

 did not extend beyond jSToi-th Elizabeth. 



October 12tli, a series of low tides had left the meadow very dry, 

 and in the remaining pools young larvse of brood 10 were found. 

 This brood was almost completely destroyed by the high tides, 

 which brought fish to almost every pool on the meadow. It was 

 the last brood that could be enumerated, because later only iso- 

 lated i^ools with wrigglers were found. 



October 19th, the last reg-ular inspection was made, the work 

 of cleaning Great ditch, the railroad ditch, and cutting the con- 

 necting ditch to Woodruff creek was nearly completed, and actual 

 completion was awaiting money enough to do the work. On the 

 whole, what was done is completed in the best possible manner, 



