A SIXTH SENSE 



ALL warm-blooded animals, including Man, are provided 

 with five senses, i.e. seeing, hearing, tasting, feeling, smelling. 

 I now propose to show that there are certain kinds of animals 

 which have a sixth sense, and that with this sixth sense they 

 are perfectly able to detect objects in their vicinity, to 

 determine their character, and to move about with great 

 rapidity and perfect ease when deprived of both sight and 

 hearing, thus proving most conclusively that they possess a 

 sixth sense. I also propose to show that by mechanical 

 means, we can provide a ship with a similar sense, not, of 

 course with the wonderful sensitiveness found in nature, but 

 sufficiently sensitive to detect any large object in the vicinity 

 of the ship, to indicate with a great degree of nicety its dis- 

 tance from the ship, and also to give a fair idea of its 

 size and character. 



Before explaining this apparatus, I propose to prove that 

 a certain animal does have a sixth sense. 



We are able to see perfectly in twilight which appears to 

 be complete darkness to a common fowl. A horse can see 

 better in the dark than we are able to do, and the cat and 

 owl with their very large eyes are able to see sufficiently 

 well to get about when there is very little light. However, 

 no eye, no matter how large or perfect it may be, is of the 

 least use in total darkness. 



About a hundred years ago, the Abbe Spallanzani dis- 



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