30 



INSECT LIFE. 



lect, the plant should be made known to them. 

 They should also be able to distinguish between 



Fig. 8.— Clematis. (Note that the leaflets are in threes, like the poison ivy,, 

 but each leaflet has several midribs.) 



poison ivy and the harmless Virginia creeper and 

 clematis. See Figs. 6, 7, and 8.* 



LESSON XI. 



ON MOUNTING SPECIMENS. 



1. Take the specimens that were collected on the 

 first collecting trip, and which have been kept moist 

 either by being left in the cyanide bottle or in a 

 closed vessel upon damp sand, and spread them out 

 before you. If the directions were followed, they 

 are all winged. 



2. Select one of the larger specimens and observe 



* The writer, who is extremely susceptible to the poison of poison 

 oak and poison ivy, has experienced great relief when poisoned by bath- 

 ing the affected parts frequently with a lotion made of one part tincture 

 of grindelia and four parts water. Prompt and frequent application of 

 this lotion will prevent the appearance of the pustules characteristic of 

 this disease ; if the application be not made soon enough for this, the 

 injury can be kept from spreading by a thorough smA persistent use of the 

 lotion. 



