From these picts it is obvious that activity is proportional to the amount of rainfall within each area. Correlation coefficients for all graphs are summarized in Table h. Table 4. Correlation coefficients for the Regression of Sr*~ of rainfall. Fraction of total Sempling Area Time of Sampling 90 on inches May June July March thru July 0057 0686 0651 Oolk7 0.60 O-L6 O-45 0663 0637 Ooli2 Ooli3 0.95 0087 0690 0.66 0.37 0072 March April Total Sampling Area 0077 Above 0° Latitude Below 40° Latitude Northeast 0077 Nerthwest 0.78 Southeast Oot? Southwest 0.87 The next step in the analysis of the rain water data is made by comparing gr?° in rain to that measured by various pot type collectors. However, most of these devices collect total fallout and have sampling networks that do net coincide with the rain water stations. Therefore, a comparison of these results can only indicate the relative levels of rainocut to tetal fallout, This comparison is shown in Table 5 in which the average values of fallout in rain water are obtained by considering 10 rainfall sampling stations nearest New Haven, Pittsburgh, and New Yorks <= PO = ee ORO ees