For sale by retired tutor: collection of excellent science books in very good condition.

　　The Physical Universe by Krauskopf & Beiser, Softbnd, 700pp: $5 isbn 0-07-913011-9

　　Marine Biology by Castro & Huber, Softbnd, 450pp: $5 isbn 0-0-5

　　Definitions of Biochemistry by David Morgan, Softbnd, 79pp: $2 c.1967

　　Physical Mechanics by Bruce Lindsay, Hardbnd, 451pp: $3 c.1950

　　College Physics by Francis Sears & Mark Zemansky, Hardbnd, 460pp: $3 cat.# 54-7899

　　Chemistry by Nathan & Hendrickson, Cliffs Quick Review, Softbnd, 186pp: $3 isbn 0-7-7

　　Excellent for high school or college level science courses. Will ship. Will separate. PayPal, cash or USPS money order. $18 for all.