Show Academy Gives Four Coveted Science Prizes W WASHINGTON AI April Apri rIl 25 5 CAP CAP- AP FoUr pf pr f the most coveted prizes o of science for outstanding achieve ments In various arlous fields of aChieve I investigation Investigation gation were awarded last night at the annual banquet of the National Academy of or Sciences The Marcellus Hartley medal for eminence In the aI application of science to the public welfare went health to Dr Charles V. V Chapin of the R R. I. I for department contributions of Providence to J public health and his work in administrative adminis I control of disease Under the rules rul of th the academy I in fn which membership is rigidly limited lim urn urn- ted holders of the public welfare medal are accorded the additional honor of being notified like members members mem mern- bers of the meetings of ot the academy acad acad- em emy and invited to participate in Its it's scientific sessions ASTRONOMER HONORED Dr William Hammond Wright of Lick ob observatory who ho an announced announced an- an announced at last nights night's meeting Important important im Im- irn- irn discoveries relating to the nature of ot the mysterious nebulae and planetary atmospheres was awarded the Henry Draper medal for original investigations In as astronomical astronomical astronomical as- as physics The Agassiz medal for tor contributions contributions contributions to the science of ot oceanography oceanography phy was given to Dr V. V Ekman of the University of Lund Sweden Seden for his achievements in physical oceanography hy Dr James Perrin Pen Smith of Stanford Stanford Stan Stan- ford university was awarded the Mary Clark Thompson medal and 20 honorarium for his achievements achieve achieve- ments meats in the paleontology of the triassic period the earliest di division division dl- dl vision of ot the tho mesozoic era or age of reptiles which were regarded as the most Important services to geology s and paleontology in the thelast thelast last year FOUR NOT AWARDED Four other medals at tb the disposal disposal disposal dis dis- dis- dis of ot tile the academy were not awarded a Development of an apparently specific chemical tes test for for diagnosis no sis of amoebic d dysentery one of the common tropical diseases has been revealed here by Lieutenant Colonel Charles F. F Craig of ot the army medical corps Addressing the academy by In Invitation invitation in- in Invitation he explained the results of ot his investigation of the endamoeba endamoeba enda- enda the parasite which causes tho the disease which led him to suggest a method of routine examination of physical excretions ex excretions excretions ex- ex to detect its presence inthe inthe In Inthe the human system even in the ab absence absence absence ab- ab sence of visible symptoms TELLS EXPERIMENTS Experiments with alcoholic extracts extracts ex- ex tracts of the r recently developed cultures of the parasite he said eald have hare established definitely that it contains a substance capable of dissolving dis dissolving dis- dis solving the red blood corpuscles of or man and another capable of ot dissolving dissolving dissolving dis dis- dis- dis solving cells in the lining of ot the intestine Utilization of or the extracts for d diagnosis was made possible he be re related re- re l by the dl discovery ery co that the b blood lood serum of ot individuals infected with the parasite contains antagonistic antagonistic agents supplied b by nature to c combat th the substances in th the para para- s site ite These antibodies were found to bring about apparently specific chemical reactions In the presence of the extracts They did not appear in the tho blood serum of or patients cured of ot the disease |