30 photos A scientist measures chemicals in the Orgel Laboratory. A lab tech counts Adrenal Cortex Cells as part of an experiment in the Reproductive Biology Dept. A scientist dissects tissue containing Actylcholine Recept;or from the Organ of an Electric Eel. A lab tech uses Paper Chromatography as a step in the preparation of the Brain Hormone Somatostatin. An Electron Microscopist Adjusts his instrument. A laboratory apparatus is adjusted in the Tumor Virology Lab. The Acquisition of American Sign Language is studied in the Institute's Language Lab. A Scientist prepares equipment for a Liquid Chromatography Experiment. Slides used in the Study of Neuromuscular Disordrs are cataloged in Molecular Neuropathology Laboratory. A Scientist adjusts a model of the DNA Molecule in the Orgel Laboratory. Analysis of Cell Growth Factors by Column Chromatography. Biochemistry Section of Neuroendocrinolgy Lab. Preparation for Electrophysiological Analysis. Sampling for Biochemical Analysis. A Scientist in the Reproductive Biology Lab uses a Pipetting Techique to Separate Epithelial Cells. Communications between nerves and muscles are measured on this apparatus in Neurobiology Lab. Serum for Peptide Purification is prepared in the Neuroendocrinology Laboratory. A high-powered microscope in used to assist in measuring Nerve muscle Relationships in the Neurobiology Lab. Identifying minute quantities of brain transmitter substances is now possible with the use of radioactive assays. DR. JONAS SALK, 1974 Fellows Meeting.