96 



gauze containing 16 strands or 15 meshes to the inch, but could not 

 pass 20 strands or 19 meshes to the inch. 

 It is therefore evident that the large-meshed mosquito bars ordi- 



Fig. 4. — Showing screen containing 16 strands or 15 meshes to the 

 inch. Allows male and female stegomyia fasciata to pass. 



PlQ. 5.— Showing screen containing 20 strands or 19 meshes to the 

 inch, through which stegomyia fasciata can not pass. 



narily used in this latitude would not offer proper protection, and that, 

 window screening must also be of a finer wire than is sometimes 

 employed. 



