Editoiial. xvii 



appeared every fortnight ; nd lasted seven days. A lobe of the 

 freshly excised thyroid gland of a slieep was grafted under the skin of 

 the two sub-mammary regions. The headache and melancholia dis- 

 appeared permanently as did the hallucinations. 



The skin nutruion became normal and the periods became 



regular. 



Many other cases are mentioned by Brown-Sequard where injec- 

 tion of the prepared juice of the thyroids has been most efficacious in 

 removing the effects of myxoedema. 



The Lumbar Nerves of the Apes and Man,' 



These nerves were studied in Cynocephalus, Rhesus, Hylobates 

 Orang, Chimpanzee, Gorilla and man. 



The most remarkable result of the comparison was that in man 

 the last lumbar nerve is at least pirtially included in the plexus while 

 in the apes it is wholly combined with the sacral plaxus. 



The author remarks that the plexus exhibits, in origin, course 

 and anastomoses, almost a complete identity between man and the 

 apes Figures illustrate the relations in the several species. 



The Nerves of the Arm and Hand in Apes and Man.- 



Interest gathers especially about the brain and the hand of 

 apes as it is in these respects that man is supposed to differ most 

 remarkably from the anthropoids. The paper just noted gives a very 

 detailed and apparently precise account of the distribution of the 

 nerves and Paccinian corpuscles. 



The three nerves of the flexor aspects of the upper extremity, 

 the medianus, musculocutaneus and ulnaris are related and have been 

 separated from each other in the course of philogenetic development. 

 The resulting variability renders them unreliable in determinmg the 

 homologies of the muscles they may supply. The radialis, supplying 

 the dorsal aspect, is relatively constant in apes as in man. The prin- 

 cipal variations are in the sensible branch to the back of the hand 

 which has a larger area of distribution in apes. In general, deep and 

 permanent distinctions in these respects do not exist between man 

 and the apes but the differences are frequently such as appear occa- 

 sionally in man as variations. 



'Die lendennerven der Affen und des Menschen. Anton Utschneider 

 Mitnchener medicinische Ahhandhungcn. VII, i. 1892. 



^Die Nerven des Armes und der Hand bei den Affen und den Menschen. 

 Dr. Wilhelm Hofer. Mitnchener medicinische Abhandltmgen . VII, 3, 1892. 



