334 JOURNAL OF ECONOMIC ENTOMOLOGY [Vol. 3 



pletion many cases that must have remained fragmentary except for 

 his never-tiring perseverance. Mr. Goodwin has contributed so much 

 to the exhibit, from many standpoints, that it would be hardly 

 recognizable as the Ohio Entomological Exhibit if his work on it were 

 eliminated. Most of the bromide enlargements were made by him, and 

 the various mechanical contrivances by which it is quickly put into 

 place and again torn down and quickly packed are, for the most part, 

 the products of his ingenuity. The work of the writer upon it has 

 consisted in giving it general direction, outlining the various features 

 of which it should consist, suggesting and approving methods of work- 

 ing out the various details, etc. 



Categorically considered the parts of the exhibit are are follows : 



Insect Cases 



There are 24 cases of insects in plain stained boxes 14 x 22 inches, 

 papered inside and fitted wdth glass covers. (Fig. 1, Plate 22.) Six 

 of these cases are duplicates, one set of six being with each of the two 

 County Fair Exhibits, which as we have already stated, are shown 

 at two different fairs on the same dates. 



The contents of the cases are as follows : 



1. Some Common Scale Insects. 



Samples of fifteen named species are shown. 



2. Scale Insects. 



Twenty-eight specimens are shown, some of the samples being the same scale 

 shown on different host plants. 



3. San Jose Scale. 



Wax models sliowing the life history stages of the insect, five pieces. 

 Two additional wax models showing infested fruit of apple and pear. In- 

 fested twigs of apple and pear. Infested leaves of apple. 



4. Bark Borex's. 



Life history series of Scolytus rugulosus and of Phlceotribus Uminaris. 

 Specimens showing characteristic work of each, and remedies and preventives 

 for both shown on treated sticks of peach wood. 



5. Shade Tree Pests. 



Tussock Moth, all stages, Rosechafer, Cottonwood Leaf-beetle, Tulip Scale, 

 etc. 



6. Farm Crop Pests. 



Wheat Jointworm; adults, larvae, parasites and distorted straws. 



Clover Root Borer; adults, pup^ and larvae; specimens of injured roots 

 pressed out by botanical driers. Chinch bugs; glued in large numbers to 

 young corn plant, which has been pressed out by botanical driers. Vial of 

 Sporotrichiim globuliferum grown on corn meal and beef broth. 

 7 and 8. Insecticides. 



Square, flat-sided bottles with curved necks are filled with insecticides 

 and the corks are covered with red sealing wax. To illustrate the composi- 

 tion of sprays a vial is filled with each separate ingredient and another vial 



