MATERIALS AND METHODSThe patients were chosen at random from the medical and surgical chest services at Lawson VA Hospital. In age they ranged from 20 to 55 years. The average age was 31 years. All were male. Diagnoses and a summary of data are listed in Table I. None had clinical evidence of cardiovascular disease. With the exception of Cases 1, 2, 12, and 13, the pulmonary lesions were so sharply localized or limited in degree that no significant disturbance in the pulmonary circulation was suspected.The experiments dealing with intravenous and intramuscular injection of epinephrine were performed on these 13 patients in the post absorptive state.The epinephrine2 was a U.S.P. preparation and is said by its manufacturer to be a synthetic material, to exist 100 per cent in the levo-rotatory form as a hydrochloride, and to contain no traces of nor-epinephrine.

An earlier study (1) indicated that the administration of 500 ml. of 6 per cent dextran to five patients produced hemodilution and increased the cardiac output. There was insufficient evidence in this study to correlate the increase in cardiac output with any phase of the hemodynamic change resulting from plasma volume expansion. In order to extend the previous observations, right au

Associative fluency tasks and an intelligence test were administered under both evaluative and play atmospheres to thirty-six 4-year-old children. The resulting dualtrait-dualmethod matrix of correlations provided both convergent and discriminant validity evidence for the measures used. Intelligence and associative fluency scores did not correlate significantly under any combination of sets, and scores for each trait assessed separately were significantly intercorrelated despite having been obtained under different sets. The results do not support Wallach and Kogan's previously untested hypothesis that a play atmosphere is necessary for a valid assessment of associative fluency, indicating instead that trait dissimilarity is responsible for zero-order correlations obtained between associative fluency and intelligence.1 This paper is based upon a thesis submitted by the senior author to the Graduate Faculty of Purdue University in partial fulfillment of the requirements for the degree of Master of Science. She is grateful to the members of her committee, K. N. Black, S. I. Offenbach, and C. D. Smock, for their assistance; she would also like to acknowledge the advice of J. E. Moore.2 Requests for reprints should be sent to Tannis

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