. The effect of age on habit formation in the albino rat .. . UNIT 10 20 30 40 50 NUMBER OP TRIALS 50 70 30 §5 oa coo EH* •«a: UNIT = 10 0 100 200 300 400 500 600 700 800 TOTAL TIME (SECONDS) c , 5 §4 S3 SB UNIT = • 100 r ^^^^ 0 100 200 300 400 o<J0 600 700 800 TOTAL TIME (CENTIMBTBRS)

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Keywords: ., bookcentury1900, bookdecade1910, booksubjectanimalbehavior, booky