Sequence in kitchen showing young mother putting milk bottles into refrigerator, family eating at table, mother putting milk in jug, boy, girl and father eating breakfast. Shots of milkman loading milk cases into delivery wagon, of horse-drawn wagons leaving dairy. Shots of machine cutting butter in blocks, wrapping blocks. FOLLOW SHOT of milk cases moving along conveyor to man piling cases. Shot of man loading truck with milk cases coming off conveyor. MS of milk truck driving past camera. Shots of milk cans moving along conveyor, of men taking lids off. HACU of cartons being filled with ice cream coming off tube. Shots of milk bottles on front porch, man's hand taking two, of woman's hands taking two milk bottles from front porch. Shots of woman looking at milk slides in microscope. HAMS PAN across women technicians at work in laboratory. Shot of two women at work making milk sample slides in laboratory.