This paper describes an investigation by ultra-violet spectrometry of the physical and
chemical changes caused by treating interphase chick heart fibroblasts, grown in tissue …

Ultra-violet photomicrographic studies on mitosis in chick heart fibroblasts in vitro are
described. Although this technique as applied to living cells is limited by non-specificity, and …

A photographic method of microspectrography applicable to living cells is described.
Absorption spectra and the total amounts of absorbing substance in living chick fibroblast …

The study of the photodynamic reaction of cells under experimental conditions may help to
elucidate the more general problems of photosensitization. Photosensitive substances not …

The experimental and interpretive procedures necessary to obtain ultraviolet absorption
spectra of structures in intact living cells are described. A simplified microspectrophotometer …

AN ultra-violet microscope having an achromatic objective designed by Brumberg and
Gershgorin1 (with an aperture of 0· 5) has been used for photographing living tissue …

Objective Transmission.-The simple method of measuring the ratio of the energy leaving the
condenser to that leaving the objective did not yield consistent results. This was due to …

A rapid method was developed to label the outer surface of chick embryo fibroblasts with
fluorescamine without disruption of the cell monolayer. Polyacrylamide gel electrophoresis …

1. In the presence of autogenous red blood cells, fibroblasts, grown in vitro from the heart
and intestine of embryo chicks of from 6–12 days incubation, underwent a rapid …

The observations recorded in this paper were made on cultures in vitro of embryonic and
adult chick tissues. The cultures chiefly studied were choroidal cells from the eyes of seven …