PEEFACE 



ited including more than 300 originals our one object having been 

 to best elucidate the structures described. Photomicrographs of actual 

 sections, combined with interpretive drawings and diagrams, appear to 

 us the ideal illustrative procedure. 



The majority of the photomicrographs are taken from Ferguson's 

 "Normal Histology and Microscopical Anatomy." For a number we are 

 indebted to our friend and colleague, Professor Albert H. Tuttle of the 

 University of Virginia. 



An attempt is made to adapt the book somewhat to prevailing non- 

 uniform demands, by putting the more essential and what we regard as 

 additionally desirable in different type. 



Eeferences to the recent literature are inserted for the student who 

 may wish to consult the more important original works upon which the 

 later developments of Histology have advanced. 



We gratefully acknowledge our indebtedness for illustrations and 

 data taken from the recent and earlier literature, and our obligations to 

 the publishers for their kindly help and courtesy. 



HARVEY ERNEST JORDAN 

 JEREMIAH S. FERGUSON. 



