spectrographn.

1884 Young in Proc. Amer. Acad. Arts & Sci. 1884–5 (1885) 20 238 In July, 1876, several photographs of the spectrum of Vega were taken with an apparatus which Dr. Draper called the spectrograph.

1889 Internat. Ann. Anthonys Photogr. Bull. 394 The color sensitiveness of the plate I find out with the aid of my Quartz spectrograph.

1893 Nation 16 Feb. 126/2 With the eleven-inch Draper spectrograph nearly a thousand photographs were taken.

1940 Geogr. Jrnl. 95 276 My own work was research on the Ozone Layer with a Dobson Spectrograph.

1955 Times 15 June 5/5 Such spectrographs are used in laboratories to examine the ions existing in ionized gases, and an American version has been used in rockets.

1967 M. Schlauch Language v. 102 There is an instrument called the spectrograph which can record and photograph the complex series of vibrations of the air which convey a sequence of spoken sounds.

1974 Encycl. Brit. Macropædia XI. 605/1 The most noteworthy observation made with the parabola spectrograph was the spectrum of rare gases present in the atmosphere... There was a line corresponding to an ion of mass 22 that could not be attributed to any known gas.

1891 Pall Mall Gaz. 26 Sept. 4/2 A few spectrographs of pure and impure blood.

1898 Edinb. Rev. Apr. 306 Rich harvests of photographs and spectrographs were garnered.

1946 Nature 20 July 79/1 The result of this selection is a volume from which spectrographers may derive helpful guidance in the correct choice of analytical methods.

1959 E. Pulgram Introd. Spectrogr. Speech ii. 27 The experimental linguist.., like the spectrographer of speech, is interested in the cultural and the physical values of the phenomena at the same time.

1884 Science 3 727/1 Spectrographic operations are..much more sensitive to atmospheric conditions than are visual observations.

1900 Edinb. Rev. Apr. 460 The spectrographic impression of a hydrogen star.

1962 Amer. Speech 37 62 Phonemic analysis of the stress-intonation system based on spectrographic analysis of a specific corpus.

1974 Sci. Amer. Mar. 86/3 Another promising diagnostic technique for detecting abnormalities in infants, in addition to the spectrographic analysis of the cry, is the measurement of..changes in brain waves in response to sounds.

1981 Amer. Speech 1977 52 269 A carefully developed argument, supported with spectrographic evidence.

1900 Edinb. Rev. Apr. 474 Having spectrographically surveyed the entire heaven.

1959 E. Pulgram Introd. Spectrogr. Speech i. 20 The position, which I have at least in part adopted in consequence of learning to view language spectrographically.

1900 Edinb. Rev. Apr. 458 ‘Spectro~graphy’ is the complement of spectroscopy.

1903 A. M. Clerke Probl. Astrophysics 3 Spectroscopic photography, or ‘spectrography’ dates from Sir William Huggins's adoption of the dry gelatine process in 1876.