The first attempt ever made to provide special care for mental diseases in the field was during the Russo-Japanese war. A hospital set aside for this purpose by the Russian army at Harbin treated between fifteen hundred and two thousand men in 1905 and 1906. It has, however, never been claimed that all of the mental cases reached that place. Of 1,310 admissions the following conditions were represented[87]:—epileptic psychoses, 22.5 per cent; alcoholic forms, 19.5 per cent; dementia praecox, ten per cent; confused states, nine per cent; hysterical psychoses, 7.7 per cent; general paresis, 5.6 per cent; toxic conditions, 4.8 per cent; manic-depressive psychoses, four per cent; degenerative types, 3.5 per cent; traumatic psychoses, 3.2 per cent; and organic brain diseases, 2.9 per cent. It is interesting to note that Steida, who analyzed the statistics of the Russo-Japanese war in 1906, reached the conclusion that a psychic trauma alone was not a sufficient cause for the development of a neurosis. He attached an equal importance to prolonged physical exertion, deprivation, loss of sleep, hunger and thirst, etc. The most common disturbances following battles were found to be hysterical excitements and confused states. As soon as the examination of men for military service was undertaken in this country in 1917 it became apparent that one of the most frequent causes of rejection was either mental disease or deficiency. The second report of the Provost Marshal General to the Secretary of War in 1919[88] showed that of all rejections during the first year of mobilization, twenty-two per cent were due to physical defects which would interfere with duty (defects in bones, and joints, flat foot, hernia, etc.), fifteen per cent were on account of imperfections of the sense organs, thirteen per cent were for defects in the cardiovascular system and about twelve per cent were due to nervous or mental diseases. The inspection at camps following the physical examination of the first million men mobilized resulted in a rejection of nine per cent on account of nervous or mental diseases. Of all causes for rejections from the army up to February 1, 1919, according to Bailey,[89] mental and nervous diseases ranked fourth numerically. The "neuropsychiatric" causes were:—psychoses, eleven per cent; neuroses, fifteen per cent; epilepsy, nine per cent; organic nervous diseases or injuries, eighteen per cent; mental defects, thirty-two per cent, and constitutional psychopathic states, nine per cent; a total of 67,417 cases.