because from tbat quarter the light is not sometimesbrilliant and at other times obscured, but is nearly thesame throughout the day. Economy consists in a dueand proper application of the means afforded accordingto the ability of the employer and the situation chosen;care being taken that the expenditure is prudently con-ducted. In this respect the architect is to avoid the useof materials which are not easily procured and preparedon the spot. For it cannot be expected that good pit-sand, stone, fir of either sort, or marble, can be procuredevery where in plenty, but they must, in some instances,be brought from a distance, with much trouble and atgreat expense. In such cases, river or sea-sand may besubstituted for pit-sand; cypress, poplar, elm, and pine,for the different sorts of fir; and the like of the rest,according to circumstances. The other branch of eco-nomy consists in suiting the building to the use whichis to be made of it, the money to be expended, and theelegance appropriate thereto; because, as one or otherof these circumstances prevails, the design should bevaried. That which would answer very well as a townhouse, would ill suit as a country house, in which store-rooms must be provided for the produce of the farm.So the houses of men of business must be differentlydesigned from those which are built for men of taste.Mansions for men of consequence in the governmentmust be adapted to their particular hahits. In short,economy must ever depend on the circumstances of thecase.