X-rays simply explained : a handbook on Röntgen rays in theory and practice (1904)
Howgrave-Graham, Robert Pickersgill, 1880- · London : Percival Marshall & Co · leaf 7
XLIBRIS E. DALE TROUT The Model Engineer** Series. No. 19 X-RAYS SIMPLY EXPLAINED A Handbook o?i Rout gen Rays in Theory and Practice HV R. P. HOWGRAVE-GRAHAM, M.I.E.E. THIRD EDITION, COMPLETELY REVISED
X-rays · Radiography
Internet Archive · Medical Heritage Library · Public Domain Mark 1.0. Free to use for anything.
