Out of 59 officers who made the initial incursion, 43 were treated for injuries.
The 53rd lost 39 killed and 119 wounded in the battle out of 283 officers and men.
"Over two hundred fifty dead so far, out of three hundred seventy officers and men."
The boards caused a "rapid and widespread" thinning out of 1700 incompetent officers.
During the battle, the regiment lost 367 out of 478 officers and men, a rate of nearly 75%.
The failure rate is low, no more than 100 a year out of nearly 28,000 uniformed officers.
Three out of four officers, including almost all the generals and colonels, are party members.
On any given shift, it is not unusual for 4 out of 10 officers not to show up.
The Bootle police union claimed that 69 out of 70 officers had joined the strike.
Five out of six officers of the New Zealand corps were struck down.
