Upper: Fig. 48. Entrance of McKittrick Cave, about Fifteen 



Miles West of Carlsbad 



The long-eared jack-rabbit bats were found hibernating in this 

 cave 



Lower: Fig. 49. Entrance of Sevoya Cave, Nineteen Miles 



North of San Antonio, Texas 



Great numbers of guano bats spend the year in this cave and 

 produce an annual crop of about 60 tons of guano. 



128 



