24 



tiires will do much good by attracting attention to the 

 subject, and furnishing indisputable facts. 



Our conception of a human being, the lecturer said, 

 necessarily embraces not only a mind with its character- 

 istics, but also a physical frame with its attributes and 

 accomplishments. The animal and the spiritual, the 

 physical and the mental, whatever may be the degree of 

 their distinctness, the measure of their independence, or 

 the method of their connection, are indisputably united. 

 " What God hath joined together, let no man put asun- 

 der." If one would understand the laws and workings 

 of the human mind, he should study it in its connections 

 with the body with which it is so intimately blended. It 

 is in such a study that the lecturer proposed to ofler a 

 little help. An intelligent discussion of physiological 

 facts presupposes some knowledge of anatomy. To in- 

 sure a clear understanding of the facts with which we are 

 especially to deal, it is necessary to somewhat particu- 

 larly describe the structure and operations of the nervous 

 system. 



Wednesday, March 15, 1876. 



This evening was given the second of Dr. Johnson's 

 series of lectures. In continuation of the physiological 

 portion of his subject, the lecturer brought forward facts 

 to show that the functions of the brain must largely de- 

 pend upon the character of its blood supply. From 

 these and facts adduced at the previous lecture it appears 

 that some thought does not require us to suppose it to be 

 the activity of a soul using the brain as an instrument. 



He assumed that it was generally conceded, that the 

 mental faculties of animals are not the manifestations of 



