2So NATUFLXL HISTORY OF TUE FARM 



life history of mosquitos may be demonstrated by leaving a 

 vessel of rain-water exposed on a shaded window-sill, outside, 

 where the adult mosquitos may fly to it, for a fort!ii<;ht 

 before it is needed. Egg^ "^^'iH ^^ ^'-^^^^ on the surface and all 

 stages of development will quickly follow. Living larwe of 

 black-flies ("turkey-gnats," "sand-flies," etc.), horse-flies and 

 punkies and alcoliolic specimens of bot-fly and hom-fly larvae 

 may be shown in demonstration. 



The record of this study may consist of a fully amiotatcd 

 list of the ]3cstiferous insects obser\Td. The notes should 

 cover such points as the following : 



Tinie and place of observation and relevant weather 

 conditions. 



Kind of animal molested, and sort of molestation (buzz- 

 ing, tickling, biting, egg-laying, etc.). 



Means emplo\'ed by the animals for evading or in combat- 

 ing the pests (standing in water, in wind, in brush, switch- 

 ing or biting them, coating their hair with mud, etc.). 



Breeding, places of pests. 



