Heron, David. [from old catalog]
The influence of defective physique and unfavourable home environment on the intelligence of school children, being a statistical examination of the London county council pioneer school survey / - London : Dulau and co., ltd., 1910. - 2 p.l., 160 p. : diagrs. ; 31 cm.
e 11001113
Eugenics.
School children.
HQ750.A1 / L8 VIII
150 / LOE
The influence of defective physique and unfavourable home environment on the intelligence of school children, being a statistical examination of the London county council pioneer school survey / - London : Dulau and co., ltd., 1910. - 2 p.l., 160 p. : diagrs. ; 31 cm.
e 11001113
Eugenics.
School children.
HQ750.A1 / L8 VIII
150 / LOE