CONSTITUTION AND DEVELOPMENT OF TERMITES. 319 
Fic. 34.—Base of a sixteen-jointed antenna. 
Fic. 35.—Base of another sixteen-jointed antenna. 
Fic. 36.—Base of a seventeen-jointed antenna (nymph of the first form). 
Fic. 37.—Base of an eighteen-jointed antenna (nymph of the first or 
second form). 
The figures 30 to 37 are all copied by the microscope, 3, 4, Kor., with the 
tube drawn out. 
Fic. 38.—Flattened tube constructed by T., and suspended from a plaster 
cornice. The lower end (to the right of the figure) was open; the upper end 
is broken. 
Fic. 39.—A similar flattened tube—short, enlarged and flask-shaped. A 
small portion of the cornice to which it was suspended is represented. 
Fic. 40.—Portion of a gallery formed by T. in the angle of a wall; seen 
from the inside. 
PLATE 18. 
Termes lucifugus. 
Fie. 1.—Ovary of a perfect insect before loss of the wings. 3, 6, Kor. 
Fic. 2.—Ovaries of a nymph of the second form. 38, 4, Kor. 
Fic. 3.—Ovary of a very old complementary queen. The tubules are evi- 
dently atropied, and the spermatheca was empty. 1,4, Kor. Por. ant. = 
anterior portion. 
Fic. 4.—Left ovary of a nymph of the first form. 3, 4, Kor. 
Fig. 5.—Testis of a perfect insect before loss of the wings. 3, 6, Kor. 
(Spermatozoa are present in the vas deferens.) 
Fie. 6.—Testis of a nymph of the second form. 3, 4, Kor. 
Fic. 7.—Testis of a nymph of the first form. 3, 4, Kor. 
Fic. 8.—Testes, vasa deferentia, and vesicula seminalis (the two latter 
not containing spermatozoa) of a perfect insect before loss of the wings. 
3, 4, Kor. 
In the above eight figures, and in some on the following Plate, the efferent 
ducts are partly shown, in addition to the generative glands. 
Fic. 9.—Developing spermatozoa, in the fresh state. The one indicated 
with the letter a is fully developed. 4, 3 Kor. 
Fic. 10.—Oviduct (¢u.), uterine portion (a. ov.), spermatheca (spé.), seba- 
ceous (colleterial) glands (g/. seb.) of a complementary queen. 3, 4, Kor. 
Fic. 11.—Portion of the intestine at the origin of the four Malpighian 
tubules in a newly-born larva. 3, 4, Kor. 
Fic. 12.—Similar portion, with four large and four small tubules. 3, 4, Kor. 
