CONTENTS. Xlll 



tlie genus Hisler, 339 ; 82, on parasitical insects, 340 ; 83, 

 on the ovipositors of insects, ib.; 84, whimble of insects an 

 ovipositor, 341 ; 85, stings of insects used as ovipositors, ib.; 



86, anatomical description of the proboscis of the bee, 343; 



87, on the indentation in the head to receive the proboscis, 

 344; 88, on the parts of the mouths of insects, ib.; 89, 

 referring to note ib.; 90, on the habits of bees in collecting 

 food, &.C., 345 ; 91, description of the parts of the mouth of 

 the common flea, 346 ; 92, on the structure of the mouths 

 of caterpillars, ib.; 93, on the difference between the larva 

 and the perfect insect, 348 ; 94, on bees' wax, 353 ; 95, on 

 the construction of the cells of bees, 354; 96, on the ^enus 

 Trichins, 355 ; 97, on the mode in which the stag-beetle 

 cleans its antennas, ib.; 98, on the glow-worm, 356 ; 99, on 

 the glow-worm's Ught, 357; 100, on the manner in which 

 the spider attaches its thread to different bodies, 359 ; 101, 

 on the number of the species of insects, 364 ; 102, number of 

 the species of butterfly in this country, 365 ; 103, on insects 

 subsisting on carrion, 367; 104, on the similarity between 

 the improvements in paper-making and the construction of 

 ivasp-paper ; and on the migration of birds, ib. 



CHAPTER XX. 



OF PLANTS. 



Preservation, perfecting, and dispersing of seed, 369; germina- 

 tion, 378; tendrils, 381; particular species, 384; vaUis- 

 neria, t6.; Cuscuta Europaea, 385; misseltoe, 386; colchi- 

 cum autumnalc, 387; dionsea muscipula, 389. 



J^Tote 105, on the structure of birds, 372 ; 106, correction of the 

 text, 383; 107, on the Cuscuta Europcea, 385 ; 108, on para- 

 sitical plants, 387 ; 109, no attracting syrup on the leaves 

 of the dionaea, 390; 1 10 description of the pitcher-plant, ih. 



