A Sixth Sense 



HEAD OF TOWNSEND'S BAT. 



V* 



In this case the sensitive organ is in front of the ears and also in two egg- 

 shaped projections on the nose. The eyes are very small. 



HEAD OF CESTONI'S BAT. 



This bat has the sensitive organ in the ears and also on the upper lip. It is 

 the kind that one finds in the dark passages of the pyramids of Egypt ; it will be 

 noted that its eyes are so extremely small that they do not appear in the engraving. 



