G. GENERAL NATURAL HISTORY AND ZOOLOGY. 289 



mental distinction between man and other animals ; third, 

 that many of the influences which are the causes of insanity 

 in man operate frequently in the same way, and to the same 

 degree, on the mind of animals ; fourth, that man and other 

 animals are alike subject to certain diseases, including espe- 

 cially those of the brain and general nervous system ; fifth, 

 that the same sudden and marked changes of character or 

 disposition that in man so commonly constitute the prodro- 

 mata of insanity occur equally in animals; sixth, that in ani- 

 mals, as in man, there is hereditary transmission of predispo- 

 sition to disease, of qualities acquired by education, of de- 

 formities accidentally produced, and of morbid lesions arti- 

 ficially created ; seventh, that the diseases common to man 

 and other animals are frequently, at least, due to similar 

 causes ; eighth, that the lower animals are liable to the same 

 kind of mental disorders as man ; ninth, that, in comparing 

 the mental or other diseases of animals with those of man, 

 due allowance must be made for ordinal, generic, and specific 

 for anatomical, physiological, and therefore, also, patholog- 

 ical differences, as well as for individual idiosyncrasies or 

 predispositions. 



In support of these propositions Dr. Lindsay adduces nu- 

 merous instances, drawn partly from his own experience and 

 partly from the testimony of others, and certainly makes out 

 a very strong case. He promises a series of articles, first, 

 upon the physiology of mind of the lower animals; and, sec- 

 ond, upon the p>athology. Under the first head he proposes 

 to inquire into the differences, real or apparent, between ani- 

 mality and humanity, and into comparative psychology ; and 

 under the second to discuss, first, madness in animals, and, 

 second, insanity in animals. The last of these subjects has 

 been treated by him in the Journal of Mental Science, and 

 in the British and Foreign Medico -C hi rurgical Review like- 

 wise. 



PHOSPHORESCENCE OF MARINE ANIMALS. 



According to Professor Panceri, of Naples, the phosphor- 

 escence of marine animals is due in all cases to matter cast 

 off from the animal, but still adherent to it; and he is of the 

 opinion that the property is that of dead separated matter, 

 and not of the living tissues. In all cases (excepting JSfocti- 



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