An apparatus for ultra-high-speed cinematography of the vocal cords

In order to expand the studies of vocal cord vibration into greater varieties, normal and pathological, a photographic apparatus has been developed which meets the following needs: 1) Ultra high speed photographing can be done with any subject whose larynx is visualized under a laryngeal mirror; 2) The illumination is bright enough for high framing rates up to 10,000 frames per second and for color photographing; 3) The operation of the equipment is simple in order to obtain adequate films easily and consistently. The present paper describes the structure and the operation of the apparatus in detail.

Selective condensation of aminoacyl adenylates by nucleoproteinoid microparticles (prebiotic-lysine-model system-genetic code)

Microparticles composed of each of four enzymically synthesized homopolynucleotides and the same lysine-rich proteinoid have been found to influence the condensation of the AMP-anhydrides of each of four amino acids. The conditions of preparation of the particles and other variables of the experiments control the types of reaction. When a specified set of conditions was identified empirically, the incorporation favored the amino acids whose present-day codons are related to the homopolynucleotide in the particle.