Show RESEARCH IS JOB colonel keeps nature of experiments peri ments secret new york col ool charles A lind und bergh has plunged into his research work with renewed vigor in an effort to forget the past he goes almost dally daily to an extensive laboratory reserved for his personal use in the rockefeller Kocke feller institute for medical research in new york city but exactly what he does there Is hid den behind a barrier of secrecy A few months ago it became known that colonel lindbergh then the hap py father of a curly haired son had been working on a centrifugal alpar atus designed to separate serum from the blood observers however are disinclined to believe his whole attention Is rivet ed on such a prosaic affair as a ceneri fuge curiosity has been whetted by instructions prohibiting employees from approaching the lindbergh Und bergh lab oratory or attempting to engage the famous flyer in conversation when lindbergh sits among co work ers for luncheon in the restaurant on the grounds he is not disturbed none speaks of the dire events which the colonel Is trying to forget they have been cautioned too against talking abroad about the col anels return to his laboratories so that he may enter and leave without being subjected to the gaze of curious outsiders lindbergh who was known as slim long before his son was kid lid obviously has lost weight but his countenance is cheerful there Is much speculation as to the nature of his work worl in connection with the serum experiment it was recalled that lindbergh s first assoria tion with the institute was when he flew to quebec with some antIp neu monia serum provided by it for the stricken floyd bennett it Is thought he might be interested in developing a serum to be carried on polar flights but that Is only one of the many guesses and rumors |