THE MAMMOTH CAVE. 15 



of astonishment that no general account of it 

 can be obtained among the booksellers by those 

 who are desirous of information regarding its 

 wonders. 



Upon arriving at the Cave we found a small 

 pamphlet for sale, entitled "A Guide Manual 

 to the Mammoth Cave of Kentucky. By 

 Charles W. Wright, M.D., Professor of Chem- 

 istry in the Kentucky School of Medicine, 

 formerly Professor of Chemistry in the Medical 

 College of Ohio." Printed at Louisville, Ky., 

 by Bradley & Gilbert, 1860. 



This manual explains very satisfactorily the 

 chemical and mechanical causes which were 

 exerted in the formation of the Cave, and 

 briefly indicates all the chief points of interest 

 which should attract the notice of the visitor 

 in his explorations, and, we believe, is thor- 

 oughly reliable in all these particulars. Its 

 circulation, however, is limited to those who 

 visit the Cave, rarely coming before the general 

 reader ; and it is probable that the majority of 

 visitors, as in our case, have no opportunity of 

 examining and profiting by it until after their 

 departure, and tlien it is generally thrown aside 

 and forgotten. 



Since our visit we have made every effort to 



