184. REPORTS ON THE STATE OF SCIENCE.—1912. 
in one row of eight, and the other two below this row and about half- 
way along it. This arrangement was similar on both sides. 
G. Jacobson’s Organ.—The rudiments of this organ were in a 
similar condition to that found in the adults. 
H. Ovaries ——The ovaries from a fotus 6 feet long [No. 25, 
Table XI. ] were about 24 inches long. They were firmly embraced by 
the upper ends of the Fallopian tubes. Both ovaries were equally 
developed. “Their outer surface was much furrowed. This may have 
been accentuated by the preservative, but they were distinctly furrowed 
Fria. 4.—Ovary (nat. size), B. musculus. No. 25 Foetus. (Del. ad Nat.—8.T.B.) 
when quite fresh [fig. 4]. A transverse section shows young follicles, 
connective tissue, and blood-vessels as usual. 
I. Testes.—The testes from foetus No. 51, 9 feet 3 inches long, 
were about 24 inches long, and were equally developed and closely 
attached to the upper end of the vas deferens. The outer surface was 
smooth, and not furrowed as in the ovaries. A transverse section 
showed numerous follicles with developing sperm mother-cells. The 
follicles were separated by well-marked strands of connective tissue, 
and there was a large blood-supply. 
J. Thymus.—This organ consisted of two main oval bodies, each 
about 2 inches long, in a foetus of 5 or 6 feet. They were situated on the 
base of the great vessels of the heart, and showed on their surface a 
finely lobulated structure. A transverse section showed the normal 
mammalian structure, free nuclei, small cells, large cells, and concentris 
corpuscles, with well-marked strands of connective tissue dividing up the 
whole body into lobules. . ‘+ © . 
K. I’'lippers.—These were taken from a fcetus of 6 feet [No. 25], 
to see whether anything of the extra digit mentioned by Kiikenthal re- 
mained to this stage. On dissection no trace of this digit was found, 
