A common method of preparing the grain for the quern was called _graddaning_, which consisted in taking a handful of corn in the stalk, setting fire to it, and when it had burnt long enough, knocking the grain from the head by means of a stick; thus both thrashing and drying it at the same time. This of course was a wretched and most extravagant mode of procedure, blackening and otherwise spoiling the grain, and wasting the straw. This process was common in the Western Islands, where also there was a kind of very rude kiln, on the bare ribs of which were put the heads of the grain, which, when dried, were pulled down on the floor and immediately thrashed and winnowed, and stored up hot in plates, ready for the quern. Thus could a man have cut the sheaves, dry and thrash the barley, clean it for the quern, and make his breakfast thereof after it was ground.[37] Another method common in Badenoch and the central Highlands was to switch the corn out of the ear with a stick, separate it from the chaff, and put it in a pot on the fire, while a person kept stirring it with a wooden spatula. “I have seen,” says a gentleman from Laggan, “the corn cut, dried, ground, baked, and eaten in less than two hours.”[38] There must, however, have been a mill on a somewhat larger scale than either the hand or water-quern, situated in a great many of the Highland districts, as it is well known that in the Highlands as well as the Lowlands, multure and thirlage were common exactions by which the tenants were oppressed. The tenants would be no doubt glad in many cases to escape the heavy mill-dues by grinding their grain for themselves, as well as their rude contrivances would allow them. But the convenience of a well-constructed mill in a district is evident, and of course it is but fair that those who take advantage of the mill should pay for it. Moreover, in early times, when large mills were first introduced into a district by the laird or proprietor, it was natural enough that he should endeavour, either by bargain or force, to get his tenants to take their grain to the district-mill to be ground, as only by this means could the expense of building and keeping up of the mill be defrayed and a miller induced to rent it. As money was scarce in those days, and as rent and other dues were paid in kind, it was natural and fair enough that the landlord should exact a small portion of the grain taken to his mill as due to him for keeping the mill up, and also for the miller to take payment for his trouble and time by keeping to himself a certain proportion of the meal into which he had converted the grain. But like every other custom, this was liable to abuse, and did in the end turn out to be a most grievous exaction and a great hindrance to agricultural improvement. Every farmer was thirled to a particular mill, thirlage being a due payable to the landlord; and the miller, besides having a croft or small farm attached to the mill, was allowed to exact