CONTENTS 
PART I 
Fundamentals 
CHAPTER I 
Tur Mrtuops anp Score or GENETICS 
Paar 
Introductory . , 1 
Genetics deaned 5 As eve icc Mier) CAL eat Pe ea ea ay eo 
Content of genetics .. . Ree ae rie Ne Ce Se ee ee 1 
Variation and Heredity Meaneds 3 
The problems of genetics dita e yee dne ieee nea oun rinese oe wre + 
The methods of genetics. . . . . a ee eee eee eee eaeee ae 
Prerequisitesdor: SeMetICS cme ceys lac tai) ee eee ey eee ee eee eee aL) 
Therapplicatiomyotieenetics= =. 05 a 5 sa & 2 ee ne eee eeea ce LL 
Geneticsuntarriculturey neque. 44. yet en ee Pe ies ey 2 
CHAPTER II 
VARIATION 
Introductory. .. . Ne Ah eee uD TIN CAST CES En tS Whe Ohad © Ap oe ge LE 
Darwin and sartoae Sa te tele Br Ae ais be hanes to SS Fees PSE ae he pees reste ede ee 
The universality of variation. fo 8 ach oe ee ede ee a me fe RE 
The variation concept. . . : Gert tee dee eyes neg orien aac, tee ae one peweeg ee OL 
@lassiticationtol-Varia tions v2) tales Gan a ce eueen icon etree wae tee rere ase eet el'D) 
Variationand development: 2 4.2 2... @ 8 @ fn a ho ea dee @ oo 220 
Variation“and environments | 464 22. 24-2 ae ee elie ee Ae eee ee 
CHAPTER III 
Tue STatisticaL Stupy or VARIATION 
Introductory . 32 
Causes of Panniatione, ; 32 
Law of statistical regularity . 32 
Law of deviations from the average. 34 
The normal curve and its significance. . . ............+.... 84 
Requirements of biometrical study... .. 2... 2... ee ee 86 
iBiometricaliterms eee ees eae ae eee het ea oar 
Requisites to reliability... .. eee ee en ee ae er re ee eet 
Grouping variates—frequency table. A cawee e acth Mace Bah ae Ge Pyne eh ee es: 
Frequency graphs ... . SD ees Res Oe oe cole 
’ The mean, standard deviation and Coenen Gr variability Ee Ee ee lk 
IURCOLV# Of RCLT OL eRe easa ee ome es eas ee ue rovae eon ahesare ssn a wae 
ix 
Digitized by Microsoft® 
