June, '16] PARKER: DISPERSION OF MUSCA DOMESTICA LINNAEUS 

 Table III. Record of Recaptfre Station 216 



341 



Table IV. Mujis City Meteorological Data: Direction and Velocitt op Wind; Precipitation; Temperaturb 



(Jn.v 12 to ArorsT 20)* tt 



* The writer is indebted to the United States Weather Bureau for the data in this table. It is not the data which would 

 be the most significant in all cases but the best available. 



t The writer is also indebted to the Weather Bureau for the following data which show the average hourly wind veloc- 

 ity (miles per hour) at Miles City and at several of the large cities in the east during the months of June, July and Au- 

 gust respectively: Miles City, Mont., 6, 54: Boston, Mass., 9, 8, 9; New York, N. Y., 13, 12, 14; Philadelphia, Pa., 10, 8, 

 9: Atlantic City, N. J., 9, 7, 8; Washington, D. C, 6, 5, 5. 



t These records were taken at 6.00 a. m. and 6.00 p. m. hence, there is a possibility that midday records might be 

 different. 



