12 rRANSACTIOXS LIVERPOOL BIOLOGICAL SOCIETY. 



taste, smell, bearing, touch, heat perception, etc., and in 



numerous glands. One of the advantages of a duplicate 

 organ lies in the fact that if the one be injured the other 

 remains to discharge 4 its function; it is thus with the 

 lung, the kidney, the glands and sense organs referred to. 

 The man who loses oik^ eye may he very thankful that it 

 is not the single 1 pineal eye of an early period of living 

 things, of which he has been deprived, and that he can 

 fall hack upon the other one of the pair. The Brain alone 

 in man has now departed from the observance of this 

 great law. While the functions of its right and left 

 halves remain the same in certain important respects, 

 such as motion and tactile sensibility, the treasury of 

 memory as to objects seen and word symbols heard, the 

 faculty whereby we communicate with our fellows, the 

 hard earned products of education, are almost exclusively 

 stored in the left hemisphere: should any accident happen 

 to certain parts of that important structure the unhappy 

 individual loses the power of speech, the power of under- 

 standing speech and written language, he may even lose 

 the recognition of the objects and the persons around him, 

 and the memory of his past life. It seems unwise that we 

 should keep, so to speak, all our intellectual eggs in 

 one basket, when we are provided with two of these 

 marvellously constructed organs. Having these two brain 

 hemispheres, does it not seem probable that we lose much 

 by only educating one? 



We don't know much at present about the function of 

 those parts of the right brain which correspond to the 

 important organs in the left, of which I have spoken; 

 they are probably potential Language and memory centres, 

 dormant as regards function. Would it be possible to 

 educate them, to locate the language faculty, motor and 

 sensory on both sides? If this were possible the 



