. Manual of static electricity in X-ray and therapeutic uses . tained in the preced-ing chapter. But if we accept the verdict of advocates of thecoil and find that it declares an inferiority with the staticmachine which cannot be computed in units of facility, econ-omy, satisfaction, noiselessness, readiness of action, safety oftubes, eye and ear strain of the operator and subject, numberof factors requiring attention and care, liability of expensivedamage; when we find, moreover, that the cost of the Holtzmachine and a prime coil is about the same, that one cannotrelieve a single patients suf


. Manual of static electricity in X-ray and therapeutic uses . tained in the preced-ing chapter. But if we accept the verdict of advocates of thecoil and find that it declares an inferiority with the staticmachine which cannot be computed in units of facility, econ-omy, satisfaction, noiselessness, readiness of action, safety oftubes, eye and ear strain of the operator and subject, numberof factors requiring attention and care, liability of expensivedamage; when we find, moreover, that the cost of the Holtzmachine and a prime coil is about the same, that one cannotrelieve a single patients suffering in clinical work and that theother is among the most efficient and valuable appliances in anelectro-therapeutists outfit, whether in sanitarium, hospital, orprivate practice, argument for the coil falls to the ground andmust cease to command the therapeutists attention. I may also state that an expert manufacturer and operator ofCrookes tubes and other varieties of apparatus, who operates asix-inch spark coil in his own laboratory, informed me on Feb-. Authors X-Ray Apparatus. Showing- position of Crookes tube over object onphotographic plate-holder. X-RAY APPARATUS AND CROOKES TUBES. 123 ruary 14th, 1897, that he had recently spent an entire half-daywith the authors of the paper from which I have quoted and wit-nessed the best X-ray effects they could produce ; that he had de-voted a week to investigating every prominent type of equipmentin the large Eastern cities, and that none had equalled the effectsdemonstrated to him by my static machine in my office. Thisis the usual remark of competent observers who have beenfamiliar with other apparatus and see for the first time a power-ful Holtz machine in splendid action. Convinced, therefore,beyond present controversy that the most desirable apparatusfor X-ray examination in medical work is the improved staticmachine, we may proceed to methods and the accessory partsrequired. The Authors Apparatus Complete.—An eight-plate


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Keywords: ., bookcentury1800, bookdecade1890, bookid390020112101, bookyear1897