[17] The sponsons of the Mark I were only 10 mm. armour and not proof against A.P. bullets.
[18] Map reference.
[19] The original order was for 100, this was later on increased to 150.
[20] The lighter form of tank was called “medium” because the French, by now, had produced the light Renault tank (see [Plate III]).
[21] At this time, January 1917, General Swinton’s notes given in Chapter IV were not known of at the Heavy Branch Headquarters.
[22] Major O. A. Forsyth-Major (Second in Command of the Egyptian Tank Detachment), on whose report this chapter is based, lost all his documents and maps at sea in May 1918 when the ship on which he was returning to England was torpedoed and sunk, consequently some of the dates are missing.
[23] “It is not some familiar spirit which suddenly and secretly discloses to me what I have to say or do in a case unexpected by others; it is reflexion, meditation.”—Napoleon.
[24] This chapter is extracted from a project submitted by Headquarters Tank Corps on June 11, 1917. It correctly visualised the Third Battle of Ypres, and the German artillery tactics adopted during it.
[25] At this time the German reserves totalled about 750,000 men.
[26] Breakdowns in the past had for the most part been due to bad ground, not defective mechanism.