CONTENTS. xix 



Page 



Valentin's knife 347 



Dissecting needles - 348 



Non-cutting instruments ib. 



Troughs - ib. 



Loaded corks - - 350 



Rests - - 351 



CHAPTER XIV. 



Method of Dissecting Vegetable and Animal Tissues 352 



Vegetable tissues - ib. 



Animal tissues - 353 



Dissection of particular tissues 359 



Nerve ib. 



Muscle 360 



Tracheae - 361 



Spiracles - - 362 



CHAPTER XV. 



Methods of Exhibiting Objects of Interest 363 



Circulation of the blood - ib. 



Method of viewing the circulation in the vertebrata 365 



Circulation of blood in the frog - 367 



Method of viewing the circulation in the tongue of the frog 370 



CHAPTER XVI. 



On the Cibculation in Plants 373 



Chara ib. 



Method of viewing the circulation 375 



Tradescantia virginica — spiderwort 377 



Penstemon - 378 



Groundsel - - ib. 



Vallisneria spiralis - 379 



Best method of viewing the circulation - . - 380 



Method of cultivating chara, vallisneria, &c. - - - ib. 



Habitat - - - - - 882 



CHAPTER XVn. 



Methods op Procuring iNPusoBr and othbr Animalcules - 383 



Localities - - - - ib. 



Apparatus . - - . 334 



