We can trace the series of agricultural operations in the calendar without much difficulty all through the year. The Roman year, we must remember, began with March, and March, as we have seen, had under the military necessities of the State become peculiarly appropriated to the religious preparation of the burgher host for warlike activity. But the festivals of April, when crops were growing, cattle bringing forth young or seeking summer pasture, all have direct reference to the work of agriculture.[200] At the Fordicidia, on the 15th, pregnant cows were sacrificed to the Earth-goddess, and their unborn calves burnt, apparently with the object of procuring the fertility of the corn; and the Cerealia on the 19th, to judge by the name, must have had an object of the same kind, though the supersession of Ceres by the Greek Demeter had obscured this in historical times. The Parilia on the 19th, recently illuminated by Dr. Frazer,[201] was a lustration of the cattle and sheep before they left their winter pasture to encounter the dangers of wilder hill or woodland, and may be compared with the lustratio of the host before a campaign. On the 23rd the Vinalia tells its own tale, and shows that the cultivation of the vine was already a part of the agricultural work. On the 25th the spirit of the red mildew, Robigus, was the object of propitiation, at the time when the ear was beginning to be formed in the corn, and was particularly liable to attack from this pest. The religious precautions thus taken in April were not renewed in May; but at the end of that month of ripening the whole of the _ager Romanus_ was lustrated by the Fratres Arvales. This important rite, for some reason which we cannot be sure of, was a movable feast, left to the discretion of the brethren, and therefore does not appear in the calendar. In June the sacred character of the new crops, now approaching their harvest, becomes apparent; the _penus Vestae_, the symbolic receptacle of the grain-store of the State, after remaining open from the 7th to the 15th, was closed on that day for the rest of the year, after being carefully cleansed: the refuse was religiously deposited in a particular spot. Thus all was made ready for the reception of the new grain, which, as is now well known, has a sacred character among primitive peoples, and must be stored and eaten with precaution.[202] This was the chief religious work of June; in July, the month when the harvest was actually going on, the festivals are too obscure to delay us; they seem to have some reference to water, rain, storms, but it is not clear to me whether the object was to avert stormy weather during the cutting of the crops, or, on the other hand, to avert a drought in the hottest time of the year. The true harvest festivals begin in August; the Consualia on 21st and Opiconsiva on 25th both seem to suggest the operation of storing up (_condere_) the grain, and between