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Dictionary of Genetics
Because genetics is a young science, its workers still often have to coin their own technical terms. This dictionary is an attempt to define and stand- ardise these terms. The first edition will doubt- less contain errors and I would be grateful to readers for suggestions as to additions or correc- tions.
The dictionary is not limited solely to modern terms because students still read, and need to understand, the older books. Also, it is hoped that the inclusion of both older and modern terms will help the coiners of new words to avoid putting an entirely new meaning on an old established word. Moreover, the provision of a full glossary of genetic and allied terms may have the altogether desirable effect of preventing authors from continuing the present trend to- wards complication of vocabulary. Genetic literature would be more readily understood if writers had, where possible, used an existing term instead of coining a new one. This would have avoided the use for one and the same thing of centromere, kinetochore, kinomere, kinetic constriction, primary constriction, centric con- striction, spindle attachment, insertion region, attachment region and attachment constriction. There is much to be said in favor of simplifica- tion, and even if simplification of the present vocabulary of genetics is not immediately possible, at the least it is to be hoped that writers will not continue to coin new words where suitable recog- nised terms already exist.
In compiling the dictionary, use has been made of the books and scientific papers listed in the bibliography. I wish to make grateful acknowledgement to
Dr. C. D. DARLINGTON, F.R.S., and to Messrs. J. & A. Churchill Ltd., for permission to reprint a number of definitions from their book "Recent Advances in Cytology"; I am also indebted to the Macmillan Co. of New York for permission to reprint a number of definitions from "The Cell in Development and Heredity" by E. B. WILSON. In addition, a few definitions have been taken direct from "An Ecological Glossary" by J. R. CARPENTER (published by Messrs. Kegan Paul, Trench, Trubner & Co. Ltd.), "A Diction- ary of Scientific Terms" by J. F. & W. D. HEN- DERSON (published by Messrs. Oliver & Boyd Ltd.), "The Chromosomes" by M. J. D. WHITE (published by Messrs. Methuen & Co. Ltd.), "Animal Breeding" by L. M. WINTERS (pub- lished by Messrs. John Wiley & Sons, Inc.) and from Volume 28 part 2 of the "Journal of Hered- ity", and I am grateful to the authors and pub- lishers concerned for permission to do this.
I am indebted to Prof. R. A. FISHER, also to Messrs. Oliver & Boyd Ltd. of Edinburgh, for per- mission to reprint in abridged form (in Appendix 4) Table No. IV from their book "Statistical Tables for Biological, Agricultural and Medical Research." I am also grateful to Mr. A. J. BATE- MAN, and to the Editors of Nature for permis- sion to reproduce in Appendix 9, a table from "Genetical Aspects of Seed Growing" which appeared in Nature Vol. 157, p. 752.
Finally I am deeply indebted to my wife for her constant help in checking the numerous typescripts which marked the gradual evolution of this book
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