... Mucus menbrane,smear. 51 Onion Epidermis,w.m. 2 Frog Epidermic Cell,sec 52 Hydrilla Verticillata Leaf,w.m. 3 ... Human Blood, smear 82 Pine Leaf,c.s. 33 Frog Blood,smear 83 Pine Young Staminate,Cone l.s. 34 ... Drosophisa-Chrysalis,w.m. 12 Ascaris,c.s. 62 Frog-Vnsegmented egg,sec. 13 Mosquito-Female,w.m. 63 ... Mouse Ovary,sec. 76 Com Starch,w.m. 27 Frog Spenna Tozoa,smear. 77 Butterfly Teg,w.m. 28 Bulgarious ...