APPENDIX XIX. 



GENERAL NOTES. 



1 This fish will be the fishing-frog. See notes to Chapter I. 



2 Of course, there is no such thing as this spontaneous genera- 

 tion in which Walton believed. Nevertheless, some very interest- 

 ing experiments have lately been carried on with reference to the 

 appearance of animal culse in water and other fluiJs, which have 

 been boiled and then hermetically sealed up. This is, however, 

 loo abstruse a subject to enlarge on here. 



