1. in 1933, adopted the same classification. He said that in divergence excess the divergence is not completely passive, but is due to a simultaneous relaxation of both internal recti, and a contraction of both external recti. Manifest divergence first occurs when the patient is tired, and is followed by a gradual weakening of the powers of convergence. Of the convergence insufficiencv, he said that 60 per cent. are non-accommodative in type. Most standard text-books state that divergent strabismus is due to myopia, but this is certainly not the case. In the last century myopes were not given glasses at such an early age, or so frequently as nowadays, and perhaps this early correction of myopes has something to do with the fact that myopia associated with divergent strabismus is rare;changes. Dunnington, Muscular