CIj^ 3mstB itnb Stnsc-©r0mts of 



By Peof. C. LLOYD MORGAN. 



Abstract. 



NOTHING- in natural history is more abstniso and 

 (lifTicnlt than an accurate description of the senses 

 of animals." So wrote tho Danish naturalist, Fabricius, 

 nearly a hundred years ago. Recent advances in science 

 have not proved his saying untrue. Even in animals con- 

 structed on the same morphological plan as man, there are 

 probably great differences in the ratios of the senses. But 

 where the animals are constructed on a different plan, tho 

 " abstruscness and dilficulty " arc enormously increased. 

 The special senses of man may be divided into two classes : 

 1. Contact senses, including, 



(a) Touch : by means of which wo become immediately 

 acquainted of the presence of matters solid, liquid, 

 and gaseous. 

 (&) Taste : whore the matters are liquid or gaseous. 

 c) Smell : where they are gaseous. 



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