Again: Let us suppose that the earth were clothed with a dark covering in the frigid zone. The few and oblique rays of heat, in that part of the globe would, after imparting but little of their caloric to the atmosphere, in their passage through it, be absorbed by the earth. The same effect would take place in regard to the rays of light, which are similarly few and feeble. It is easy to perceive the effect these things would have in darkening the polar regions, in greatly diminishing the temperature of the atmosphere, and, as a consequence, in contracting the extent of the inhabitable part of the globe. Thus we see, that by means of the snow, nay, by one, and as some would think, the least important of its properties, _i. e._, its color, man and his fellow animals are enabled to live in regions, the climate of which, without the instrumentality of this property, would destroy them. After speaking of the change of color corresponding to change of latitude, it were superfluous to dwell at length upon the corresponding change of season, since the principle is precisely the same in each case. There can be no doubt but that in the temperate zone, the climate throughout the year is to a great extent equalized by this happy arrangement; that, without it, our winters would be much more rigorous, and our summers proportionably oppressive. In passing, we might speak of another evil that would arise from snow being of a darker color. Upon a sudden change of temperature, it would melt very rapidly, and, if collected in any quantity, would occasion dreadful inundations, which would sweep and desolate the country. Such accidents occur even now in some parts of the world. How much more frequent and destructive they would be, in the case we have supposed, it is easy to conceive. Who then can deny that we have, in the general principle which unites these phenomena, a well-attested instance of benevolent design? Who will assert that so beautiful and necessary a provision could be the result of chance?