The most important qualities in a palette are that it should be large enough, and that it should balance well on the thumb. Whether it is round or square is a slight matter. The oval palette is usually best for the studio because the corners are seldom of use, and add weight. But for sketching, the square palette fits the box best.

Get a palette much larger than you think you want. When you get it on your thumb the mixing-surface is much less than there seemed to be before it was set, for all the actual surface is between the row of colors and the thumb. If the palette is polished it is not essentially better; it is easier to keep clean, as far as looks go, but of no greater real service. If the choice is between a larger unpolished and a smaller polished one, the price being the consideration, get the larger one. Get a light wood in preference to a dark wood for a choice of color, but not if there is better grain or lighter weight in the darker palette. It is an assistance in painting not to have to compare the tint you are mixing with too dark a surface, for the color looks lighter than it is; so the light wood will help you to judge justly of the color while the palette is new. When it has been worked on a while it will come to have a sympathetic color anyway.

This bears on the cleanliness of your palette. It is a mistake to consider that cleanliness demands that the palette should be cleaned to the wood and polished after every painting. On the contrary, if a little of the paint is rubbed out over the palette every time it is cleaned, after a few weeks there will come a fine smooth polish of paint, which will have a delicate light gray color, which is a most friendly mixing surface.

Adapting.—When you get a new palette, before you use it take a little trouble to carve out the thumb-hole to fit your thumb. Make it large enough to go over the ball of the thumb, and set easily on the top of the hand. When the hole is too small the thumb gets numb after working a little while, which this will obviate.

Cleanliness.—The cleanliness of a palette consists in its being always in such a condition that you can handle it without getting dirty; that the mixing-surface will not foul the freshly mixed paint; and that the paint around the edge is always so that you can pick up a fresh, clean brushful. If you try to clean off all your color every day and polish your palette nicely, you will not only take up more time with your palette than you do with your painting, but the fact that some left-over paint may be wasted will make you a little stingy in putting on fresh paint, which is one of the worst habits a beginner can fall into. You cannot paint well unless you have paint enough on your palette to use freely when you need it. It is all well enough to put on more, but nothing is more vexing than to have to squeeze out new paint at almost every brushful. You must have paint enough when you begin, to work with, or you waste too much time with these details.

If you are painting every day, leave the good paint where it is at the end of your work, and scrape off all the muddy or half-used piles, and clean carefully all the palette except those places where the paint is still fresh and pure. Then, when you have to add more to that, clean that place with the palette-knife before squeezing out the new color. In this way the palette will not look like a centre-table, but it will be practically clean, have a good clear mixing-surface, and you will neither waste paint nor be stingy with it.

The Arm Palette.—For painting large canvases, where the largest-sized brushes are used and paint must be mixed in greater quantities, the arm palette is a most convenient thing if it is well balanced. It is in the way rather than otherwise for small pictures, and is useful only as it is particularly called for.