=Complaints of the Volunteers.=--With Lieutenant Smith had come Dr. George B. Sanderson, whom Col. Allen, at Leavenworth, had appointed a surgeon in the U. S. army, to serve with the Mormon Battalion. According to the historian of the Battalion,[29:a] the volunteers suffered much because of the "arrogance, inefficiency and petty oppressions" of these two officers. This view of these officers, however, is to be accounted for by the Volunteers being suddenly brought under the enforced discipline of the U. S. army regulations. The heat of the season was excessive, the men had been already much exhausted by the strenuous labor and exposure during the journey through Iowa with their people earlier in the season, and as a result many of them fell a prey to the malaria prevalent in the country and at this season of the year. For this Dr. Sanderson prescribed calomel and arsenic, and as the men were averse to taking medicine, pleading even religious scruples against the drugs, the matter gave rise to much unpleasantness between the Battalion physician and the command, involving therein Lieutenant Smith, who, in the interest of what he no doubt regarded as discipline, sided with the physician. =The Line of March.=--The Battalion's line of march, from Fort Leavenworth, after crossing the Kaw or Kansas river, followed that of the first Missouri Dragoons, led over the route that same year by Col. Doniphan, via Council Grove, thence some distance up the Arkansas River to a little beyond Fort Mann, where they crossed that river in order to take what was known as the "Cimmeron Route"--because it crossed Cimmeron river and followed some distance up the south branch of the stream, called Cimmeron Creek. The last crossing of the Arkansas they reached on the 16th of September, and here the commanding officer insisted that most of the families--about twelve or fifteen in number, which had so far accompanied the Battalion--should be detached and sent under a guard of ten men up the Arkansas to Pueblo, which nestles at the east base of the Rocky mountain range. There were stout protests against this "division of the Battalion;" as it was held to be a violation of the promise that the Battalion would not be divided, also that these families should be permitted to travel with the Battalion to California. Unquestionably, however, the arrangement was in the best interests both of the families and of the Battalion, and accordingly the detachment was made up as proposed, and marched to Pueblo under command of Captain Nelson Higgins.