GeoGraph - photograph every grid square

This curious feature was engraved on a house wall in 1910 by William Johnson, a Scalloway stonemason and amateur scientist:

"This diagram illustrates the cause of the so called Earth Tides. Also each alternate Ocean Flood,the cause of which has never yet been understood. Re Earth Tides: we are told that the Moon raises the solid surface of the Earth under it about 8 inches and raises the OPPOSITE SIDE 8 [inches]. This I hold to be impossible. The phenomenon called EARTH TIDES IS CAUSED BY EARTH's WEIGHT PULLING AGAINST THE SUN'S ATTRACTION.
............
"The water flows back when attraction over & forms a heap on opposite side of Earth. to balance attn. flood. There is no ..." [the rest of the inscription is illegible and appears to have been deliberately effaced.]

The white circle is a diagram of the earth and is also marked:

"GERMAN THEORIES CONTROVERTED
Germans are Not The Favoured of Heaven."