Laboratories, their planning and fittings . Fig. 27.—Skeleton Dia-gram Screen fromProf. Kents LectureTheatre, Bristol Uni-versity. Fig. 28.—Lantern and Table at Leipzig. that though strictly a piece of apparatus it must receive mention. Themodern lantern is used for ordinary slides, apparatus, and (with a suitableattachment in place of the ordinary objective) for microscope slides, forwhich it is generally required in another position nearer the screen. It maybe expected that the chemical changes amenable to microscopic photographywill ere long require the installation of a cinematograph lante
Laboratories, their planning and fittings . Fig. 27.—Skeleton Dia-gram Screen fromProf. Kents LectureTheatre, Bristol Uni-versity. Fig. 28.—Lantern and Table at Leipzig. that though strictly a piece of apparatus it must receive mention. Themodern lantern is used for ordinary slides, apparatus, and (with a suitableattachment in place of the ordinary objective) for microscope slides, forwhich it is generally required in another position nearer the screen. It maybe expected that the chemical changes amenable to microscopic photographywill ere long require the installation of a cinematograph lantern for theirdemonstration. IHi-: KI-:()UIRKMKNTS OF CHEMISTRY 49 When the lecture centres round the lanterns exhibition, there is nobetter place for it than at the level of the centre of the screen well back inthe raised staging of the audience, but it is usually wanted intermittently,perhaps only for a few minutes, and may have to be operated by the lecturerhimself, hence, for many students classes it is placed on the lecture tablenea
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Keywords: ., bookcentury1900, bookdecade1920, bookpublisherlondo, bookyear1921
