1813.] Philosophical Transactions for 1813, Part I. 235 



On examining the narwal sculls in the Hunterian Museum he 

 found, besides the tusk which had protruded, another milk 

 tusk, seven or eight inches long, and all enclosed in the scull. 

 The scull of the female narwal exhibited two milk tusks in the 

 same situation. Thus it appears that the narwal, both male 

 and female, has two tusks ; that one is protruded much earlier 

 than the other, and that the tusks of the male narwal are pro- 

 truded at a more early period than those of the female. 



Article XII. 



SCIENTIFIC INTELLIGENCE ; AND NOTICE8 OF SUBJECTS 

 CONNECTED WITH SCIENCE. 



I. Lectures. 



Medical School of St. Thomas's and Guy's Hospitals. — The 

 winter course of lectures at these adjoining hospitals will com- 

 mence the beginning of October, viz.: — 



At St. Thomas's. — Anatomy and Operations of Surgery ; by 

 Mr. Astley Cooper and Mr. Henry Cline. — Principles and 

 Practice of Surgery ; by Mr. Astley Cooper. 



At Guy's. — Practice of Medicine; by Dr. Babington and Dr. 

 Curry. — Chemistry; by Dr. Babington, Dr. Marcet, and Mr. 

 Allen. — Experimental Philosophy ; by Mr. Allen. — Theory of 

 Medicine, and Materia Medica; by Dr. Curry and Dr. 

 Cholmeley. — Midwifery, and Diseases of Women and Chil- 

 dren ; by Dr. Haighton. — Physiology 5 or Laws of the Animal 

 Economy; by Dr. Ilaighton. — Structure and Diseases of the 

 Teeth ; by Mr. Fox. 



N. H. These several Lectures, withthose on Anatomy, and on 

 the Principles and Practice of Surgery, given at the Theatre of 

 St. Thomas's Hospital adjoining, are so arranged, that no two 

 of them interfere in the hours of attendance ; and the whole is 

 calculated to form a Complete Course of Medical and Chirur- 

 gical Instruction. Terms and other particulars may be learnt 

 from Mr. Stocker, Apothecary to Guy's Hospital. 



Dr. Clarke and Mr. Clarke will begin their Winter Course of 



Lectures on Midwifery, and the Diseases of Women and Chil- 



. (in Monday, October 4th. The Lectures are read at the 



house of Mr. Clarke, No. 10, Upper John-street, Golden- 



square) from a quarter pest ten o'clock till a quarter past eleven, 



lor the Convenience of Students attending the Hospitals. 



Dr. Roget vvill commence his Autumns] Course of Lectures 

 on the Practice of Physic at the Theatre of Anatomy, Great 

 Windmill-street, on the first Monday in October. 



