246 APPENDIX. 



of the material they are obliged to use together in 

 a most ingenious way, by means of a secretion from 

 the mouth, and it is curious to see them adapting 

 the bits into the places which they best fit, just as 

 we see a labourer building a wall of rough chalk 

 flint. During their hard labours the caddis worms 

 were fed with raw meat, house-flies, &c. 



" It is curious to observe that, if the caddis lives 

 in a rapid stream, he builds himself a heavy house, 

 as though aware that, if he did not do so, he and 

 his house together would be swept away by the 

 stream. But in a stagnant stream, his house is 

 light, for he does not want the weight to keep him- 

 self down ; so that there may be said to be laziness 

 in the caddis family as well as in our noble selves. 



"Miss Smee's preparations have been exhibited 

 at the Zoological Society, and a paper read upon 

 the subject by the eminent naturalist, Dr. John 

 Edward Gray, of the British Museum, who was 

 pleased to pay a high compliment to Miss Smee's 

 ingenuity in devising and cleverness in carrying 

 out her experiments. 



"FRANK BUCKLAND. 



"May 2, 1862." 

 "The Editress of 



'The Queen,' 'The Lady's Newspaper,' 

 346, Strand, W.C." 



