MacLean 1967 Journal [29 June] now - maybe our frequent checking has sensitized them. Nest #8 is particularly difficult. 30 June Barrow, Alaska Made it up for lunch. Afternoons I glued up tanglefoot while Don prepared doors on emergence traps. He wants to be able to open and close them to remove insects as well. Our vacuum cleaner, if we can make it work, would be good for this. Made cardboard shields for the two max-min thermometers, then loaded the whole mess on the wheel and took off for the MicroMer tanglefoot Area (I). Changed the boards and set 3 emergence traps here, then drove around to the South Beach Ridge site (II) and did the same. On the way removed 2 plovers from Central Marsh, and got 2 melanotes on the way back. Weather was pleasant - bright sunshine, although thermometers read only 38°F. A large no. Chironomus was found abundantly over the tundra, and the first adult tipulids appeared - a ? tipula on one of the (II) tanglefoots and a ? Prionocera found when Don