Reproduction and Germ Development of Human and Animals - English
Atlas of 30 OHP Transparencies comprising approx. 80 colour pictures, mostly with several component figures

Reproduction of human and animals. A series illustrating reproduction from protozoa to man. It will therefore not only be an invaluable aids in biology classes but equally valuable for teaching sex instruction. Asexual reproduction of Amoeba by amitotic division -Asexual reproduction of Hydra by budding -Sexual reproduction of Hydra -Reproduction of sea-urchin, life cycle -Fertilization of sea-urchin egg -Reproduction of fishes -Reproduction of salamanders -Female reproductive organs of vertebrates -The human male reproductive organs, side view -The human male reproductive organs, diagram -Testis, t.s. -Seminiferous tubule with spermatogenesis, t.s. -Testis, epididymis, spermatogenesis, diagrams -Spermatozoa of bull -Human hair, egg, and spermatozoon; comparison of the size -The human female reproductive organs, side view -The human female reproductive organs, front view -Ovary, t.s. general structures -Egg development: primary follicles -Egg development: secondary follicle -Egg development: Graafian follicle, early stage -Egg development: Graafian follicle, mature stage -Egg development: mature egg -Corpus luteum t.s. -Fallopian tube t.s. -Ciliated epithelium of fallopian tube. t.s. -The yolk sac of fishes and the development of embryo -The embryonic sheaths of the chicken egg -The embryonic sheaths of mammals and man -Uterus wall t.s. -Menstrual cycle, fertilization, alteration of endometrium -Ovulation, fertilization, egg development and imbedding in the endometrium -Growth of fetus in the uterus -Structure of the placenta -Fetus in uterus -Mature fetus in uterus, normal cephalic presentation -Beginning of birth, entrance of amniotic sac into birth canal.

Germ development of human and animals. Starting with the fertilization of the egg and the fusion of the two haploid nuclei, the various types of egg and corresponding types of cleavage are shown. The gastrulation, neurulation and formation of germ layers in Branchiostoma, frog and human beings are then illustrated. - Fertilization of Ascaris egg, entering of a sperm -do. egg and sperm nucleus -do. metaphase: equatorial plate with spindle apparatus -do. telophase: segmentation in 2 daughter cells -Total segmentation, 2-, 4-, 8-cells and morula, diagram -Types of eggs and segmentation I: total-equal, total-inequal, discoidal and superficial up to 8-cell-stage -do. II: morula and blastula -Echinus: blastula after total-equal segmentation -Frog: blastula after total inequal segmentation -Insect: blastula after superficial segmentation -Scheme of gastrulation -Echinus: gastrula -Amphioxus: neurula. -Frog: neurula, dorsal view. -Frog: neurula, t.s. formation of neural plate -Frog: neurula, t.s. neuralplate, notochord -Frog: neurula, t.s. details of neural plate -Chicken neurula, t.s. neural tube, notochord -Chicken embryo, l.s. primary segments -Frog embryo l.s., primary segments -Frog embryo, tail bud stage. t.s. -Frog larva, med.l.s. -Frog larva, t.s. neural tube -Frog larva, t.s. region of heart -Chicken embryo, t.s. -Chicken embryo, l.s. -Chicken embryo, w.m. of germinal disc. Blood circulation -Chicken embryo, older stage, l.s. -Development of human heart, l.s. -Development of human heart, t.s. three stages -Shaping of the human heart, drawing -Development of human lung, t.s. of fetus six weeks old -Different stages of the development of human lung -Development of human eyes, three stages -Head of a mammalian embryo, sec. rudiments of eyes -Mammalian embryo, med.l.s. with rudiments of most organs.