oar ame ae ee . © Fa JUL 754 “ Kinutes-Slonedical Iregran 2.1 1d, Study: The question was asked concerning least ruvter of animols to provide @ valid LD curves | The level of sccurecy desired vas stated as follows: Tt will be satiafactory {f the LD, (LD9. IB, 1Di9.5) tn terns of distance from a boae of epecified Kile-tonsege can be known vithia 109-700 yards. In the renge where Log da Mebdle to occur, this distance is egual to cbout 100 yr. The beat estizate for 1D59 for rvine {2 about 450 r, and for dogs abcut 250 r of 3-h MZY gemma rediation. the folleving Ca the basis of the foregoing, reecsmeniaticns vere made by the statist- tical ecnrultants: Uve 10 enimals ger point. & rer polxt would give urrelicble reenlte. Less than Four stations, cr yolute are the leazt that could be ueeds thease sheald tracket TID,9 aaa E19. A very satisfactory cetuly wenul@ result from efght well placed eteticna, end aix praid not te to hed. The final recommendation was 10 yer station, and & ctations. Actually, when the stations vere plotted, the 8b vould hare to be fn the wter, £9 7 are plenced. The proposed Lscetion of the stations Is as follows: 600 r, $29 r, OO vr, 200 r, 225 r, and 17$ er. It enculd be noted that the LBs for oan, oa the basis SAN BRUNO FRC c? Sspinese date is ebout 250 r. BEST AVAILABLE COPY, , ->