▁ 3 0 ▁times ▁more ▁than ▁the ▁average ▁number . ▁At ▁that ▁time ▁the ▁re format ory ▁consisted ▁of ▁ 1 6 ▁c ott ages . ▁The ▁supre me ▁super int endent , ▁F ann ie ▁French ▁Mor se ▁had ▁heard ▁of ▁Jacob ▁Mor eno ' s ▁idea ▁of ▁mapping ▁up ▁soci eties ▁with ▁natural ▁scientific ▁methods ▁and ▁she ▁had ▁also ▁heard ▁of ▁his ▁success es ▁in ▁the ▁Sing ▁Sing ▁prison . ▁After ▁the ▁first ▁meeting ▁she ▁h ired ▁Mor eno ▁to ▁be ▁the ▁Research ▁Director ▁of ▁the ▁inst itute . ▁Mor eno ▁and ▁his ▁assistant ▁Helen ▁H . ▁Jenn ings ▁exam ined ▁ 5 0 0 ▁girls , ▁their ▁intelligence , ▁social ▁activities ▁and ▁most ▁important ly , ▁their ▁feelings ▁towards ▁each ▁other . ▁Using ▁the ▁method ▁of ▁soci ometry ▁he ▁visual ized ▁these ▁connections ▁in ▁several ▁soci og rams . ▁The ▁earned ▁experiences ▁and ▁the ▁graphs ▁were ▁published ▁in ▁his ▁sem inal ▁book ▁Who ▁shall ▁surv ive ?. ▁As ▁a ▁conclusion ▁he ▁dist illed ▁that ▁behind ▁social ▁phen omena ▁there ▁is ▁an ▁in exp lic able ▁driving ▁force ▁which ▁is ▁due ▁to ▁the ▁structure ▁of ▁the ▁relationships ▁between ▁individuals . ▁It ▁was ▁true ▁for ▁the ▁girls ▁from ▁Hudson : ▁the ▁run away ▁re actions ▁were ▁not ▁conscious , ▁rather ▁they ▁behav ed ▁how ▁their ▁location ▁in ▁the ▁social ▁network ▁forced ▁them ▁to . ▁ ▁Notable ▁people ▁connected ▁to ▁the ▁inst itute ▁ ▁El la ▁Fitz ger ald , ▁world ▁famous ▁jazz ▁singer , ▁spent ▁almost ▁a ▁year ▁in ▁the ▁re format