14 ELEMENTARY LESSONS ON INSECTS 



7. Collect wasps from flowers (see p. 181); or, if these, 

 or any of these are already collected, and in papers in stor- 

 age, then 



8. Relax specimens for study (see p. 186). 



9. Make slide mounts of stonefly nymph mouthparts 

 (see p. 190). 



10. Make slide mounts of adult stonefly wing. 



11. Make slide mounts of antennae of various forms, 

 such as ant, mosquito, dragonfly and housefly. 



12. Make slide mounts of the feet of the same insects. 



13. Assemble for the laboratory exercises the tools (for- 

 ceps, needles, lenses) and the specimens needed. 



14. Put these away again at its close. 



collected in advance of need and brought to the laboratory, and some 

 of it will have to be prepared for study. There are indoor tasks that 

 will appeal to some tastes: tasks of rearing and caring for living insects, 

 and tasks of preparing and labelling specimens. A statement of the 

 things to be done and the conditions for doing them, and a promise of 

 proper credit for the work performed, and then a call for volunteers, 

 should do much toward finding the tastes suited to the tasks, and 

 toward securing good team work. 



A list of the things to be done in preparation for each lesson will be 

 placed first under the heading "Work Program." Division of labor 

 among the members of a class will make the work light for everybody. 

 Each one in doing his bit will acquire useful knowledge for himself 

 and provide help for others. 



