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XVIL—On the Development of the Ova and Structure of the Ovary in Man and 
other Mammalia. (Plates XXVIL-XXXI.) By James Fouuts, M.D. 
(Edin.) Communicated by Professor TURNER. 
(Read 21st December 1874.) 
CONTENTS. 
PAGE PAGE 
Introduction, . R - 3 345 Corpuscles in the Stroma of the 
The Ovary of the Calf, : : : 349 Ovary, : 36] 
The Ovary of the Kitten, . ; : 352 (d.) Development of the Egg Cee | 363 
The Human Ovary, é 357 (e.) The Development of the Membrana 
(a.) Nature of the wei prienelies rer Granulosa, . 365 
(b.) The Relation of the germ Epi- General observations on the Tselepmed: 
thelium to the peritoneal epi- of the Membrana Granulosa in adult 
thelium, . : 359 Ovaries, . : : F 368 
(c.) The manner of inclusion of ‘the Pie Structure of the oa : ; : 375 
mordial Ova and germ Epithelial General conclusions, : ; eel 
In the month of August 1872, Professor TuRNER suggested as a subject of 
investigation the structure of the ovary, and development of the ova, more 
especially with reference to the recently published observations of WALDEYER. 
In the month of April 1874, I handed in to the Medical Faculty of the 
University of Edinburgh, as my graduation thesis for the degree of M.D., an 
essay entitled “‘ Contributions to the Normal and Pathological Anatomy of the 
Ovary and Parovarium.” . 
Accompanying this thesis, were numerous microscopic preparations of the 
human foetal ovary, by means of which I was able to demonstrate my descriptive 
remarks on the anatomy of the organ. Since that date I have made many 
additional observations on the anatomy of the ovary, especially in connection 
with the development of the ova, and the formation of the membrana granu- 
losa ; and in the present memoir the result of my observations is given. During 
the last eighteen months, I have made numerous microscopic preparations of 
the ovaries of various foetal and adult animals, most of which I now possess, 
and a careful examination of these verifies my earlier statements on the 
development of the ova, and the structure of the ovary. 
It is not my intention to give a lengthened account of the views of earlier 
observers on the development of the ova and the structure of the ovary. It 
may, however, be interesting to notice the following points in the history of 
this subject. 
Previous to the time of DE Graar, the ovary and testicle were considered 
VOL, XXVII. PART III. 4X 
