Probably the 1st English Book to record the use of pressure points in self-defence.
Collingridge\'s concept was to publish a practical, illustrated textBook for the.
H.
W.
These were often quite complicated & took time to master.
Until the publication of \'Tricks of Self-Defence, A Useful Book for Everybody\', in about 1910, most of the English books on jujitsu and connected martial arts dealt more with the systems in question.
This historic work was a breakthrough in its day & remains a classic.
Probably the 1st English Book to record the use of pressure points in self-defence