... most used prepared slides 2.CE certificate Prepared Slide Set 1 1 Human Cell Mucus menbrane,smear. 51 Onion ... w.m. 21 Dog Small Intestine,sec. 71 Coprinus Mushroom Set c.s. 22 Dog Stomach,sec. 72 Chlamydomonas,w.m. ... Spermatozoa,smear 100 Zea Seed,l.s. Prepared Slide Set 2 1 Pig Adipose Cell,w.m. 51 Loose ... ,w.m. 61 Drosophisa-Chrysalis,w.m. 12 Ascaris,c.s. 62 Frog-Vnsegmented egg,sec. 13 Mosquito-Female ...