H. G. Q. ROWETT, M.A. This is a practical manual, uniform with the Dissection Guides, in which low power plans and high power details of actual ... have lately been made in the design of sun powered batteries for various kinds of machinery and for heating and cooling homes. ... is the large number of brilliantly clear photographs of such things as mirages, conjuring tricks depending on optical illusions, a#39;interferencea#39; and the ... June. 1962. 95. WEST AFRICAN JOURNAL OF EDUCATION.
|Title||:||West African Journal of Education|