Order number 940406-171827-13 _OFFIGAL USE ONLY page 50 70. PERSONAL AUTHOR (M) Wenzel, M.E.; Smith, N.R. 371. PUB. DATE (YYMMDD) 461204 \ 34. CLASSIF. LEVEL TEXT Unclassified . 950. ABSTRACT Eleven samples each of Houston black clay, Caribou loam, and Decatur silty clay loam were exposed to Able Burst of Operation Crossroads in order to determine the effects of the explosion radiation on soil microorganisms. Microbiological analysis consisted of making dilutions of 10 g of the samples in steps of 10X from 10 to 100,000 in sterile water and then using appropriate dilutions to inoculate certain media to determine the numbers of microorganisms by the resulting growth. The total counts of all samples of the Houston clay were below that of the control 801. KEYWORD(S) samples kept in Beltsville, Md. In the Caribou loam the actinomcyes and fungi counts were quite uniform, the protozoa was very low, nitrite-formers low but definitely higher than in the Houston clay, and the nitrate-formers were absent. In the Decatur loam all except four of the fungi and five of the actinomyces counts were higher than the controls. All samples except one showed a few protozoa. All samples contained 1000 or more nitrate bacteria per gram. The nitrate bacteria were low in all samples. Since there was no information as to the treatment the soil samples received at Bikini, it seemed from the analyses that the microorganisms were not injured to any appreciable extent. CROSSROADS/effects experiments ; MICROORGANISMS/biological radiation effects ; SOILS/microorganisms ;ABLE BURST/effects experiments CROSSROADS ; MICROORGANISMS; SOILS Item 150. 110. ; 88 REPORT NUMBER PRIMARY TITLE (M) XRD--166 Statistical analysis of hematologic (red blood cell count) data on pigs. Test Able. Appendix No. 5. Director of ship material report. Operation Crossroads 371. PUB. DATE (YYMMDD) 34. CLASSIF. LEVEL TEXT 950. ABSTRACT 471013 Unclassified Hematologic studies were made on swine exposed to the Test A radiation. Red blood counts (RBC) were tabulated prior to the test. There was a decline in the RBC subsequent to the tests; however, the depression was not as drastic as was observed for the white blood counts (WBC). There were 26 animals that experienced WBC reductions and of these, 17 died. The swine which died had lower minimum RBC than those that lived. The minimum WBC occurred within 96 hr, and the lowest RBC did not appear until 16 d to 22 da following the explosion. When 2003424 OFFICIAL USE ONLY