to bring them to me last summer, and fondle them as admiringly as would their father upon receiving them from the delighted children. If we except bees and wasps, there are no true insects that need be feared; nor need we except them, for with fair usage even they, are seldom provoked to use their cruel weapon. SEX ORGANS OF INSECTS. The male organs consist first of the testes (Fig. 10, a) which are double organs. There may be from one, as in the drone bee, to several, as in some beetles, on each side the abdominal cavity. In these vesicles grow the sperm cells or spermatozoa, which, when liberated, pass through a long convoluted tube, the vas-deferens (Fig. 10, _b, b_), into the seminal sack (Fig. 10, c, c), where, in connection with mucous, they are stored. In most insects there are glandular sacks (Fig. 10, d) joined to these seminal receptacles, which in the male bee or drone are very large. The sperm cells mingled with these viscid secretions, as they appear in the seminal receptacle, ready for use, form the seminal fluid. Extending from these seminal receptacles is the ejaculatory duct (Fig. 10, _e, f, g_), which in copulation carries the male fluid to the penis (Fig. 10, _d_), through which it passes to the spermatheca of the female. Beside this latter organ are the sheath, the claspers when present, and in the male bee those large yellow sacks (Fig. 10, _i_), which are often seen to dart forth as the drone is held in the warm hand. [Illustration: Fig. 10. _Male Organs of Drone, much magnified._ _a_--Testes. _e_--Common duct. _b, b_--Vasa deferentia. _f, g_--Ejaculatory sack. _c, c_--Seminal sacks. _h_--Penis. _d_--Glandular sacks. _i_--Yellow saccules. ] [Illustration: Fig. 11. _Queen Organs, greatly magnified._ _a, a_--Ovaries. _d_--Sting. _b_--Oviducts. _e_--Spermatheca. _c_--Oviduct. ] The female organs (Fig. 11) consist of the ovaries (Fig. 11, _a, a_), which are situated one on either side of the abdominal cavity. From these extend the two oviducts, (Fig. 11, _b_), which unite into the common oviduct (Fig. 11, _c_) through which the eggs pass in deposition. In many insects there is beside this oviduct, and connected with it, a sack (Fig. 11, _e_) called the spermatheca, which receives the male fluid in copulation, and which, by extruding its contents, must ever after do the work of impregnation.