vi PREFACE 



liche Microscopie and to the able account given by 

 Lee in the Microtomist's Vade Mecum. I have also 

 at times made use of Schafer's Practical Histology 

 and of Stirling's Outlines of Practical Histology. 



It is a pleasure to thank my friend Dr H. K. 

 Anderson for his help in testing the unending 

 suggestions which are made for modifications in 

 procedure. 



Nearly all the methods which are given here 

 have been tried sufficiently often to allow some 

 confidence that the student who follows the directions 

 will not fail of a good result. There are commonly 

 several other methods by which a result nearly as 

 good, and in other hands possibly better, may be 

 obtained. Some of these are given in the Notes and 

 in the Appendix ; to have dwelt at length upon them 

 would I think have been but a vain thing, tending to 

 make the manipulation too much of an end in itself. 



In a few cases, no method has seemed to me satis- 

 factory, and I have been driven to choose between 

 silence and prolixity. It will I hope be felt that I 

 have usually chosen the former. 



J. N. LANGLEY. 



