MISC. PUBLICATION 679, U. S. DEPT. OF AGRICULTURE 



Plate 1. — Plant specimens preserved in natural color and mounted in plastic plates 

 a, Poison ivy leaves in autumn colors; b, banana fruit; c, corn tassel — staminat 

 flowers; d, daffodil: e, maidenhair fern; /, cockleshell orchid; g, cardinal lobelia: h 

 orchid flower — Cattleya hybrid; i, soybean seedling; j, narcissus; k, guayule leaves: I 

 climbing fern; m, bird-of-paradise flower; n, showy lily; o, sections of disease* 

 potato; p, diseased tomato leaf; q, tree leaves in autumn colors; r, alfalfa leave 

 showing two stages of leaf -hopper damage; s, apple leaves infected with cedar-appli 

 rust; t, fringed gentian; u, sections of carrot root; v, section of tomato fruit; w, sectioi 

 of strawberry fruit. Specimens were prepared by author using procedures described 



Dehydrating boxes or cabinets (metal or wood) large enough to hold 

 10 or more 12-inch by 18-inch trays. These must be vaportight for 



use with desiccants 4 or more 



Paper trimmer, 18 inches by 18 inches, or larger 1. 



Straightedge or ruler, 12 inches or longer 1. 



Shears, 8 inches or longer 1. 



Wooden (or plastic) forceps or tongs, 6 inches to 10 inches long 2. 



Wooden (or plastic) splints (preferably bamboo) 8 inches by % inch 



by ]/% inch 2. 



