CURVES giving the light transmission along a measuring line traversing a microscopic
object are obtained with the recording ultramicrospectrophotometers [l, 2, 4, 51. These …

Fig. 2.--1. Microspectrograph. 2. Hand-operated indicator. 3, 4. Function transforming unit. 5,
7; 8, 10; 9, 11. Speedomax Xi-Xz-recorder. 6. Multiplying poteutiometer. Transformed …

THE study of various problems with ultramicrospectrographic procedures very often
necessitates the determination of the total content of a whole cell of a certain light absorbing …

SINCE Caspersson's pioneer work in the field of microspectroscopy, several complex
electrical and optical instruments have been devised in order to study the absorption of …

IN the ultra-microspectrophotometer for high resolution the absorption spectra of biological
objects can be determined by utilizing the entire resolving power of the microscope. In order …

A scanning and printing computing microphotometer for analyses of large quantities of
tissue cells and cell structures is described. One pertinent problem in quantitative cytology …

I It-N u ra microspectrophotometric work for quantitative purposes the measuring instruments
must fulfil a large number of requirements. These have been described earlier (1). Hitherto …

The design of a scanning and integrating microspectrophotometer for studying the
absorption of tissue cells in the wavelength region 2200 to 7000 A is described. The …

The calculations required for two-wavelength measurements are time consuming and
laborious. In order to circumvent this limitation of the method, a set of tables which combined …

~~ ICR~ SPECTR~ METRY is one of the most important methods for measuring the total
amount and distribution of substances in individual cells (eg 2, 3, 8). While in biochemistry …