polsomJ 



ENTOMOLOGY FOR SECONDARY SCHOOLS 



165 



mer; the latter by allowing full grown larvae to transform in 

 compact earth that is not too dry. All stages of the cabbage 

 butterfly (Figs. 2, 3) are common in autumn. The several 

 species of meat flies (Fig. 4) will lay their eggs on raw meat ex- 



MEAT FLY: l.ARVA, PUPA AND ADULT 



posed out of doors, and the maggots can be fed with cooked 

 meat. Honey bees (Fig. 5) are easily caught from flowers ; often 



FIG. 5. HONEY BEE: QUEEN, DRONE AND WORKER 



a frame containing eggs, larvae and pupae can be obtained from 

 some beekeeper near by. Mosquitoes, also, (Fig. 6) are instruc- 

 tive forms to study. To obtain their eggs it is simply necessary 

 to set out a bucket of water and leave it over night. 



A certain amount of field work is highly desirable. Some 

 school authorities seem to think that outdoor work is necessar- 

 ily a picnic, with lack of discipline. Such is not the case, how- 

 ever. A good teacher can manage his students out of doors as 

 well as in the classroom. If necessary, the field work can be 

 limited to holidays. Without personal observations in the field, 

 the orchard and the garden, the student can form but imperfect 



