EL Karlstom 1954 Oct. 4 Expt. #2, agrenatus zone of Eygkt. #1. B. carorus ad. of ELK #364, L= B. boreas young " 226?, L=(Tringa) jon A. jon B. (CYONITE) Critical maximum temperatures water bath jon A jon B 4:25 15.0°C 15.6 16.1 boreas exploring, carorus still. 4:28 20.1 18.8 19.5 Both active exploratory move- ments. 4:32 21.5 20.7 20.6 Same :36 22.9 22.2 22.3 :40 24.9 24.51 24.0 Both stand on hind legs and climb sides of jon, often flopping over on backs but righting immediately. :43 27.1 26.6 26.4 -Same :47 28.8 27.9 27.9 -boreas acts like its retreating backwards into a lumowr. Both climbing actively, flopping, & righting themselves. :51 30.5 29.6 29.9 -more speedfoot-like "digging" by boreas, carorus upright -fore- limba against top of jon. - frantic climbing by boreas :54 32.4 31.7 31.9 :57 33.5 32.6 33.1 rotation, hard-waggng boreas in crowded position. :59 34.6 34.0 34.3 carorus actively climbing or upright on hind limbs. 5:01 35.2 34.4 35.0 boreas had crowded 41 min. now rotated 45°, remained crowded abdomen along side of body depressed. Very rapid gular pulsation. 5:03 36.2 35.7 35.9 - frantic climbing by carorus crowding sending boreas frontic serching by boreas & carorus 5:06 37.7 37.2 37.6 weaker climbing & hard holding caronus, same for boreas 5:08 38.4 37.9 38.1 caronus cannot right itself leg extension boreas (cont.) 5:09 39.0 38.6 39.0 5:10 39.5 39.0 39.3