Elementary lessons on insects elementarylesson00need Year: 1928 28 ELEMENTARY LESSONS ON INSECTS III. In dissections of the ovaries note: 1. The single oviduct, leading to the outside, in which the ducts from the two ovaries are conjoined. 2. The cluster of egg strings composing each ovary. 3. The tapering form of each egg string (or tubule), with bead-like enlargements where eggs are developing in it. A nearly mature, oblong egg will lie nearest its outlet, and a series of smaller less mature eggs, gradually diminishing in size will run out to its tapering tip. The eggs of each size mature
Elementary lessons on insects elementarylesson00need Year: 1928 28 ELEMENTARY LESSONS ON INSECTS III. In dissections of the ovaries note: 1. The single oviduct, leading to the outside, in which the ducts from the two ovaries are conjoined. 2. The cluster of egg strings composing each ovary. 3. The tapering form of each egg string (or tubule), with bead-like enlargements where eggs are developing in it. A nearly mature, oblong egg will lie nearest its outlet, and a series of smaller less mature eggs, gradually diminishing in size will run out to its tapering tip. The eggs of each size mature and are deposited at successive layings. By counting the egg tubes you will obtain the number of eggs that may be laid at one time; and multiplying this by the number of eggs in a tube, will give the possible egg production of one female. IV. In cross sections prepared for microscopic study of the tissues, observe the parts indicated in figure 9 and make your own diagram, showing their relations within the body.
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