PREFACE 
Otro Starr have constantly been under requisition; Mr I. H. 
Burkitt, Mr C. H. Wricut, Mr G. Murray, F.R.S., and Mr 
N. E. Brown, have given me help with the greatest readiness 
and kindness ; other specialists to whom I have occasionally ap- 
pealed, and never in vain, are Mr J. G. Baker, F.R.S., Professor 
I. B. Batrour, F.R.S., Mr L. Boopusz, Dr H. T. Brown, F.R.S., 
Mr F. Darwin, F.R.S., Mr F. Escompsz, Professor J. B. FARMER, 
Mr W. B. Hemstey, F.R.S., Mr R. A. Rotre, Mr E. 8. Satmon, 
Professor J. W. H. Tratt, 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. 
This does not exhaust the list of helpers who have kindly answered 
single questions on special points. 
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 scathless. 
Still I trust that comparatively few errors will be found ; some are 
likely to be due to accidents, as that on p. 76, where “helicoid” is 
printed “ Delicoid,” from the misunderstanding of a mark in the 
press-proof; the word was correctly spelled in both proof and 
revise. 
I hope that the volume will be useful 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. If I have succeeded in this my aim, 
I shall have reason to be glad at the result of nearly two years’ 
continuous labour, and may look forward at some future time to 
improve the work. 
B. DAYDON JACKSON. 
CuapHam, 10th April 1900. 
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