![]() ![]() ![]() William Crouch married Sarah Dalman on Decem(Henry had married earlier, to Elizabeth Halbert, in 1863). Crouch undertake to supply objectives of high quality for those who wish them, but we congratulate them, and other successful makers of cheap instruments, on the good they are accomplishing, as it is by such means only that the taste for microscopic studies can be extended, and students trained so as to be able to employ with advantage the exquisitely perfect instruments and glasses that our best makers can produce”. We tried a number of objects with the two-inch and one-inch powers, and can state that few students will desire a greater perfection or refinement of performance. The prism of this instrument performs well, as do the cheap series of glasses with moderate angles of aperture. A few minutes’ practice will enable any one to work this arrangement so as to be useful with a low power, or with a quarter. If the object-holder is pushed upwards, the links are straightened, while, if it is pushed downwards, they are bent into elbow-joint angles, and lateral motion is easily effected. The lowest link is screwed to the stage a little out of the centre. The object-carrier, furnished with two spring clips, is attached to a sort of chain composed of three flat links joined to each other by screws, so as to produce a moderate stiffness of motion. ![]() Pillischer, to act as a substitute for the superior, but necessarily expensive, screw movements. The novelty consists in a moveable stage, intended, like the excellent one devised by Mr. Crouch have introduced a new binocular microscope to meet the demand for an instrument of moderate price and sufficient excellence for ordinary purposes. The Intellectual Observer published a review of the Crouch binocular in April, 1863, “ Messrs. ![]()
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