The clinical use of prisms; and the decentering of lenses /

Includes index.

Development of standards and tests for acceptance of traffic signal lenses. Final report.

Federal Highway Administration, Washington, D.C.

Impact tests of human subjects using a prototype air bag restraint system. Final report.

National Highway Traffic Safety Administration, Washington, D.C.

Principles of the contact lens /

Includes index.

“How Do You ‘Do’ Bokeh?” The Aesthetics of How-to Videos about Background Blur and Eroticized Women

Producers of online instructional videos about bokeh emphasize disks of light and out-of-focus backgrounds. They demonstrate how camera lenses and technical features can render bokeh, or unfocused areas. Photographic and video bokeh ordinarily appears away from the center of attention. The bokeh genre, in opposition to typical photography and video practices, foregrounds the peripheral and proposes aesthetics and ways of looking by seeing and not seeing objects. However, producers of online instructional videos about bokeh sometimes couple their sensual aestheticization of backgrounds to their stated attempts to satisfy viewers’ investments in filling foregrounds with images of objectified women. These producers emphasize unconventional aesthetics as a means of establishing their creative and technical expertise and obscuring their reproduction of traditional conceptions of women as viewable and controllable. Close textual analysis, literature on photography and transparency, and feminist considerations of representation allow me to consider the aesthetics and functions of this how-to form.

Uranium reconnaissance of the Black Mountain-Yale Point area, Black Mesa, Navajo Indian Reservation, Arizona /

A reconnaissance for uranium was conducted in the Black Mountain-Yale Point area of Black Mesa, Arizona, from February to November 1954. Numerous uranium deposits were examined, which appear to be situated in areas of greater tectonic deformation and confined to a single stratigraphic zone in the Toreva formation of the Upper Cretaceous Mesaverde group. Locally the uranium appears to occur in the vicinity of carbonized plant material in quartzose sand lenses, within paleostream channel deposits.

Dreamers of the Ghetto /

Prelude: Moses and Jesus.-- A child of the Ghetto -- Joseph, the dreamer -- Uriel Acosta -- The Turkish Messiah -- The maker of lenses -- The master of the name -- Maimon the fool and Nathan the wise -- From a mattress grave -- The people's saviour -- The primrose sphinx -- Dreamers in congress -- The Palestine pilgrim -- The conciliator of Christendom -- The joyous comrade -- Chad Gadya -- Epilogue: A modern scribe in Jerusalem.

National apprenticeship and training standards for optical technician : (contact lens technician).

Mode of access: Internet.

Zur Geschichte und Theorie des photographischen Teleobjectivs, mit besonderer Berücksichtigung der durch die Art seiner Strahlenbegrenzung bedingten Perspective,

Bibliograhical foot-notes.

Theorie der Cylinderlinsen.

Approximately nine-tenths of bound vol. are blank leaves.