PREFACE 
Mr E. S. Satmon, F.R.S., Professor J. W. H. Trait, F.R.S., and 
Professor H. M. Warp, F.R.S. To each and all my indebtedness 
for their kindness is great, the value of this Glossary being largely 
due to their ready aid. 
In every volume of similar character to this which I have had 
to consult, I have found errors, sometimes numerous, occasionally 
serious. This much larger volume offers a greater chance of error, 
and it would be vain for me to expect to escape entirely, but I 
trust that comparatively few errors will be found. 
I am glad that the volume has proved useful both to the student 
and the expert; to the former as supplying a concise definition, 
without pretending to supplant the fuller information of the text- 
book; to the latter acting as a reminder of some obscure term, or 
word employed in a special sense. 
B. DAYDON JACKSON. 
CLAPHAM, 18th July 1905, 
xi 
