in this article, after an introduction, two more or less detailed reports of history of science – from the realm of medical science – are provided to clarify that when the scientists face a problem, how they practically solve, interpret, and elucidate it. then, other various types of elucidation are touched upon, defined, and described. further on, these same various elucidations are critically...

The effects of solvent, temperature, time, weight percent of catalyst on the rate and mechanism of cyclization of natural rubber (NR) was studied in toluene and xylene solutions having tin tetra chloride catalyst (SnCl4). Iodometric titration show, with 8% SnCl4 (based on polymer weight) cyclization occurs, leaving 27.4% of the total unsaturation. Infrared spectra of c...