Bellows-boxes can be obtained which receive the plate-holder from the top, the same as in the copying-box, Figs. 15 and 18. The common wood, or "copying-box," is represented by Fig. 18. [Illustration: Fig 18.] A, being the main or outside box, is made of wood veneered with rosewood; B is another box which fits into A, sliding in and out as required. The ground glass and plate-holders fit grooves made in the inside box. In regard to plate-holders or tablets for holding the glass plates, it need only be said that the camera-boxes are accompanied with a complete set, so arranged that the light is wholly excluded from the plate while drawing out or pushing in the slide, for shutting off the light while the holder is out of the box. Should any one be desirous of using the same camera, for taking both glass and daguerreotype pictures, it will be necessary for him to be provided with two sets of tablets for his box, one for each process. [Illustration: Fig. 19.] Camera Stands. [Sidenote: CAMERA STANDS, ARM STANDS.] There are several patterns of these; almost every dealer has some particular style, which, if not for beauty, for his interest, suits his purposes best. Among the assortment, I will present only two illustrations. The first, Fig. 19, represents one which has an advantage over many others; it is made of cast iron, and of an ornamental pattern:--A, base on castors; B, fluted hollow column, which admits the iron tube C, which has on one side a hollow tooth rack to receive a spiral thread on the inner face of wheel D; this wheel, when turned, elevates or lowers the tube C to any desired height; E, thumb wheel attached to a screw which sets against tube C, to hold it in position, F, a pinion by which the camera can be directed; G G, thumb screws to hold the two plates together when in position. It is quite heavy, stands _firm_ and _solid_, and is not liable to be moved by the jar from walking over the floor. For permanently located operators these are the most desirable; but for those who are moving about from place to place, and those who wish to take views, a lighter article would be more convenient, such as one represented at Fig. 20. This stand is made principally of wood, and can be readily taken apart, so as to be packed in an ordinary sized trunk. [Illustration: Fig. 20.] [Illustration: Fig. 21.] Fig. 21 represents a small "Jenny Lind Stand," and is a very convenient article for the sitter to lean a hand or arm upon while sitting for a portrait; It is fixed with a rod for raising or lowering the top, and can be adjusted to any required height. Head Rests. [Sidenote: HEAD RESTS.]