The Frequency of the Different Classes of Mental Condition in the Children of two Mentally Defective Parents; together with the Mental Condition of the Grandparents, the Parents' Sibs 



(Brothers and Sisters) and Other Blood Relatives about Whom Something is Known. 



Abbrtvialions. — A, alcoholic; ap, apoplexy; B, blind; bd, affected with Brighfs disease; C, criminalistic; ca, cancerous; cb. childbirth; ch, choreic; cr. cripple; D, deaf; dau, daughter; dfm, deformed; dp, dementia praecox; 

 dt, delirium tremens; dw, dwarf; dy, dropsical; E. epileptic; ec. eccentric; en, encephalitis; F, feebleminded; f, father; ff. father's father; fm, father's mother; go, gditre; gp, general paralysis of the insane; ht, heart disease; hy, 

 hysteric; I, insane; id, ill defined organic disease; kd, kidney disease; la, locomotor ataxia; M, migrainous; m, mother; md. manic depressive insanity; mf, mother's father; mm, mother's mother; N, normal; Ne, neurotic; np, neuro- 

 pathic; obs, obesity; P, paralytic; pa, paranoiac; pn. pneumonia; S, syphilitic; sb, softening of the brain; sc, scoliosis; sd, senile dementia; sh, shiftless; sm, simple meningitis; st, stillborn; su, suicide; Sx, unchaste; T, tuberculosis; 

 tf, typhoid fever; tu, tumor; va, varicose veins; ve, vertigo; W, vagrant; x, unknown; ? implies doubt; t died. 



•Chorea. 'F. «"not bright." 'anencephalic monjter. "also F. 'i also ESx. '2A, iSx, lE, 2F. 'alcoholic. 

 "F. »ch. "A. »E. "also il and iC. "also C. "I. »E. "traumaticC?). "E. "Sister of m in 406a. 



"lA, 2P. "lE, iF. 2I. "Sx. "sb. "3A. I also W. »E. "lA, Sx, W, 



prob. defec. "aU A, . 



