EDITORS PREFACE TO THE FIFTH EDITION 



One criticism upon most of the current text-books of human anatomy is that 

 they are too extensive for the beginner. Much precious time is wasted by him in 

 floundering through a mass of details which obscure the fundamental facts. And 

 yet it is important to have these details conveniently accessible for both present 

 and future reference. To meet this difficult}'^, the attempt is made in this edition 

 to discriminate systematically in the use of sizes of type. The larger type is used 

 for the more fundamental facts, which should be mastered first, and the smaller 

 type for details. While it has been found difficult to apply this principle uni- 

 formly through the various sections, it is hoped that the plan, even though but 

 imperfectly realized, will prove useful to the beginner. 



In the illustrations of the bones, as heretofore, the origins of muscles are in- 

 dicated by red lines, the insertions by blue lines, and the attachments of ligaments 

 by dotted black lines. 



While the authors of the present edition are for the most part the same as in 

 the previous edition, a few changes have been made as noted under the preceding 

 section, "Arrangement of Subjects and Authors." Owing to the retirement 

 of the distinguished originator and former editor of this work. Sir Henry Morris, 

 and of Professor McMurrich as co-editor, the responsibility for the general 

 supervision of the fifth revision has fallen to the present editor. 

 V Each author is alone responsible for the subject-matter of the article following 

 - his name. Care has been exercised on the part of the editor, however, to make 

 the whole uniform, complete and systematic. 



As to nomenclature, the Anglicised form of the BNA has been continued, 



excepting those cases where the Latin form is adopted into English (e. g., most of 



the muscles), and rare cases where the BNA term seems undesirable. As a rule, 



C>- the Anglicised form where first used is followed by the BNA Latin term in 



^ brackets, except where the two are practically identical. For convenience of refer- 



^ ence, some of the commoner synonyms of the old nomenclature are also added in 



parenthesis. 



The previous edition of Morris's Anatomy was the first general text-book of 

 anatomy in English to adopt the BNA. During the past few years the merit of 

 this system of nomenclature has become so widely recognized that it is now very 

 generally accepted among the English-speaking nations. Lack of space forbids 

 the enumeration here of the many advantages of this system, not the least of which 

 is the reduction of some 30,000 anatomical terms (including synonyms) to 5000. 

 The comparatively few defects of the BNA will doubtless be remedied bj'- revision 

 (preferably through the International Anatomical Congress). For a full 

 discussion of the BNA system, with complete list of the Latin terms and English 

 equivalents, the reader is referred to the excellent work on the BNA by Professor 

 L. F. Barker, of Johns Hopkins University. 



In addition to the bibliographical references scattered throughout the text, a 

 brief list is given at the close of each section. These brief lists of carefully selected 

 references are intended merely as a guide to put the student "on track" of the 

 original literature. 



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