Abstract
WHEN a book bearing the title “Modern Optical Instruments” is found to contain nothing about the telescope, merely a reference to the microscope, and but two pages on the spectroscope, it is the duty of a reviewer to declare that the volume is not what it pretends to be. The contents belong almost entirely to ophthalmoscopy; that is to say, to the determination of optical defects by means of the opthalmoscope, and the amelioration of them by means of spectacles. There are, in addition, brief chapters on stereoscopic projection and the optical lantern. As a short work on these matters, the book is not altogether bad (though the illustrations are very coarse), and opticians may find interest in parts of it. But to say the book is “a description of a few of what may safely be termed the more popular optical instruments in use,” and to give it the title it has, is to court adverse criticism.
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