PREFACE TO THE SECOND EDITION. 



The suhject matter of the first part of these laboratory notes has been 

 almost entirely rewritten; the lessons have been rearranged; some few of the 

 exercises outlinetl in the first edition, have been replaced by others, and 

 many new ones added. The course, as now outlined, covers the essentials 

 of normal histology. 



The second part has been amplified, and many new methods added. 



I wish to thank my assistant, Dr. Alfred B. Olsen, for aid rendered in 



proof reading and other assistance given. 



Ann Arbor, June, 1895. 



G. Car I. llriiKR. 



PREFACE TO THE FIRST EDITION. 



The following pages have been prepared with the hope that they may 

 serve as a guide and a help to the students doing work in tlie Histological 

 Laboratory. In the very brief description that is given of the tissues to be 

 studied, I have boni^in mind that the students entering on this work will 

 have had a course of lectures on Histology. The aim of the notes is there- 

 fore not to supplatit, but rather to supplement the text-books on this subject. 



Drawings are to be made of nearly all the preparations e.xamined. 

 There is no better way for the student to obtain a correct and a lasting 

 impression of the tissues to be studied than l)v carefully sketching what he 

 sees under the microscope. The drawings are to be made in the laboratory. 

 A few methods for hardening, macerating, embedding, and staining tissues 

 are given; such as have proved themselves to be most reliable have been 

 selected. Anyone familiar with the methods here given can without diffi- 

 culty employ any he mav find recorded in the works on microscopical technic. 



I am indebted to the Bausch & Lomb Optical Company for sectional 



diagram of their Model microscope; to Mr. S. P. Budgett for the drawings 



of the two wood cuts. T also wish to acknowledge the help received in the 



arrangement of lessons, from Schaffer's Essentials of Histology. 



G. C. H. 



