369 
Water: 28. Elodea. 29. Duckweed. 
Sensitive: 30. Mimosa pudica. 
Leaves: 31. Sedum, Sansevieria, Coffee, and others. 
For plant propagation. 32. Bryophyllum. 
Stems: 33. *Twigs to show opposite and alternate leaf-arrange- 
ment, thorns, terminal buds, etc., 9-12”. 34. *Corn or sor- 
ghum stems dried. 
Cuttings: (Unrooted or rooted). 35. Tradescantia. 36. Be- 
gonia. 37. Geranium. 38. Coleus. 
ceeds: 
* For germination studies: Castor bean, corn, garden beans, 
lupine, peas, squash. 
* For study of root hairs: Oats, radish, sorghum, wheat. 
40. Seedlings in paper cups—any of preceding (No. 39). 
41. Terrarium material when available. 
Material for the study of genetics: 
42. *Sorghum seeds giving F, seedlings showing Mendelian 
ratios : 
Red and green seedling color (3:1)—seeds for parents 
and F,. 
Normal and albino seedlings—lethal factor (3: 1). 
Dihybrid ratio—red, green, normal, albino. 
43. *Pea seeds of tall and dwarf strains. 
44, Seedlings of any of the above. 
45, Drosophila—wild type, white, sepia, vestigial. 
LIVING MATERIAL—ANIMALS 
Protozoa (cultures not pure but desired form predominates) : 
46. Cultures of Amoeba, Actinosphaerium, Blepharisma, Para- 
moecium bursaria, Spirostomum, Vorticella, Stentor. 
47. Cultures of Paramoecia, Euglena. 
48. Mixed cultures of Protozoa. 
Other animal material: 49, Daphnia. 50, Drosophila. 51. Hydra. 
STERILIZED AGAR 
52. Petri dishes, test tubes, or flasks, sent in clean and dry, one 
week in advance will be filled with sterile nutrient agar, or with 
potato dextrose agar for the study of bacteria and molds. 
