TABLE IV. 

 The Frequency op the Different Classes of Meiial Condition in the Children of Paremts One of Whom is Memtally Defective and the Other Normal; together with the Mental Condition of 

 THE Grandparents, the Parents' Sibs. and other Blood Relations about whom Something is Known. 

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

 pra?cox; 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. gCitre; 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; Net 

 neurotic: np, neuropathic; obs, obesity; P. paralytic; pa. paranoiac; pn, pneumonia; S. syphilitic; sb, softening of the brain; sco. scoliosis; sd. senile dementia; sh. shiftless; sm. simple meningitis; st, 



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