Uttrary 



STEPHEN ROOK 



PREFACE 



Tins compilation was undertaken as it was thought desirable 

 that there should be available to students and scientists, an 

 up-to-date work somewhat on the lines of Stormonth's Manual 

 of Scientific Terms (1879, republished 1903). It contains 

 definitions of about ten thousand terms, including several 

 hundred lately coined expressions, many of which have not 

 hitherto appeared in a dictionary. The work is expected to 

 supply a want felt by many students and other readers of 

 the Biological Sciences, as the usual handy-sized dictionary 

 contains comparatively few purely scientific terms. The sub- 

 jects selected for treatment are Biology and its allies, Anatomy, 

 Botany, Zoology, Embryology, Cytology, Physiology ; and 

 some terms in Bacteriology and Palaeontology are included. 



In a first edition of a book of this kind, errors of omission are 

 inevitable, as few people have convenient access to each text- 

 book and treatise, even in one subject, as it makes its appearance 

 Suggestions for additions will be welcomed and noted for future 

 use, and should be accompanied by the name of the work in 

 which the original definition is to be found ; derivation offers 

 no difficulty as a rule, but pronunciation might be indicated by 

 coiners of entirely new terms. 



In the etymological section, Greek words have been trans- 

 literated, as science and medical students are seldom acquainted 

 with that language, and on the advice of an authority on 

 Greek, the transliteration of certain combinations of letters 

 represents the sound rather than the exact letters of the 

 original ; hence the frequent occurrence of such words as 

 brangchia, hydor, etc. 



This work was begun by Mr J. H. Kenneth, who compiled 

 most of the primary lists from which the whole has been 

 elaborated. Mr Kenneth had completed upwards of three 



751937 



