307 



There can be no mammiferous germ independent of vitellary mat- 

 ter; and as the stroma of the ovary yields the material for the con- 

 struction of the ovulum, the force that is employed in its elaboration 

 remains active, even after the maturation of that ovulum ; and the sur- 

 plus production being deposited outside of the ovisac or inner concentric 

 of the folliculus graafianus, we have, as a natural consequence, the 

 corpus luteum. Therefore the corpora lutea of mammals, whether 

 those included under the head of true or false corpora lutea, are cfim- 

 posed of the surplus production and deposite of vitellary matter in 

 the stroma of ovaria. 



Dr. M. refers to the importance of this observation in its medico- 

 legal relations; and should his opinions be found correct, it may 

 serve to settle a long controverted point in physiological anatomy. 



Dr. Patterson was excused from the duty of preparing an 

 obituary notice of the late Dr. Adrain. 



Mr. Ord presented to the Society specimens of so called 

 "Fixed Mercury," sent to the Society by Mr. Sartori, which 

 were referred for examination to Mr. Eckfeldt and Dr. Boye. 



On motion of the Librarian, it was ordered that Vols. VIII. 

 and IX. of the Transactions of the Society be presented to the 

 Historical Society of Pennsylvania, and that it be placed on 

 the list of correspondents of this Society. 



On motion of the Librarian, the subject of the lease of the 

 rooms now occupied by the Athenasum was referred to the 

 Committee on the Hall, with power to take order. 



Stated Meeting, February 19. 

 Present, twenty members. 

 Dr. Chapman, President, in the Chair. 

 The following donations were announced : — 



FOR THE LIBRARY. 



Memoires de la Societe Royale des Antiquaires du Nord. Copen- 

 hague, 1844. 8vo. — From the Royal Society of Northern An- 

 tiquaries. 



VOL. IV.' — 2 S 



