< 
vi PREFACE TO THE SECOND EDITION. 
his disposal, but also to make such additions as his 
experience might suggest in extension of the use- 
fulness of the book to a new class of readers,—the 
Medical Student, and the Junior Medical Practi- 
tioner. To this end, besides other matter, a brief 
prefatory chapter has been added, embracing the 
elements of preliminary histological manipulation. 
While claiming the indulgence of the elders of his 
profession,—the Editor feels that the best and truest 
apology for this treatise, its raison d’étre—in fact, 
may be found in the words of its concluding para- 
graph, to which the reader is now courteously 
referred. 
4, Mytne Srreet, Myppetton Square, E.C. 
October, 1873. 
