upper stratum

blood heats cognition response model contagious ophthalmia cowatice dubbeltje gas diffusion plant gently sloping surface gilling machine importantness left part nonterminal mini-black neye open and shut case overequipment pepper dulse reversible potentiometer-type field rheostat saturated water vapo(u)r saturation magnetisation value shelf-edge vibratory pile driving and extracting frame