¹ Mr. Dewar tells me that in the case of the Angami the haulers and pushers are not out of sight of each other, since the pullers are in two parties on the ropes, each party being well spread out to the rear, and what is required can be observed by the man in charge of the pushers. He adds, ‘Trilithons, of course, present a different problem and there I claim no experience’—Ed.