Show crop of the sea submarine gardens on the pacific coast which thrilled visitors in glass bottom boats in peacetime ar are now being visited by men in in diving helmets picking clumps of sea fern from the lush underwater growths this is agar sea fern one of the very essential products that uncle sam wants these war days agar agar the gelatin made from the fern gives smoothness to ice cream and contains cheeses more important its the one essential gelatin for which no substitute has been found in making laboratory tests of drinking water milk and food to safeguard american civil and military health |