accidentally and he has shown some response. I shall experiment with this. (This box is peculiarly "noisy" and has a certain fundamental note which is brought forth by the slightest manipulation of it, in addition to the "frog" effect. It is not loud, but it is distinctive--a resonance phenomenon--not caused by buckling of the metal. A. shows signs of noticing it when I handle it). He has now so many things which he associates with the meal-worms, that, in trying new ones, the old ones will have to be masked in some way. Both birds were shy in the afternoon in the presence of Mr. and Mrs. Frank Leach, although neither wore any conspicuous colors. T would not come out of cage B at all into cage C, near which the visitors sat. A came out only once. At bed-time each took the place which, at present, is his usual one. Their behavior was somewhat confused on account of fear inspired on two occasions during this period. One: The voices of children at play 220 to 250 yards to the south. Two: The passage of two open busses loaded with people; loud tooting of horns. September 11th. Brownie sang full song frequently from before sunrise until noon. In the afternoon he changed to under-song in which the hen's cut, cut, ka-da-cut was often heard. By standing near him it became evident that his full song, at that time, which was of a peculiar staccato type, was stimulated by similar efforts of a thrasher 3 or 400 yards off to the south west. B's individual burst of song varied in length from about 5 seconds to over a minute. A fair average length was perhaps 10 to 15 seconds. No thrasher conventions have been noticed for some weeks. No carrying of twigs and investigation of nesting sites. + (Archie was still out of bed at 6:15 P.M., when I left, but was in Room 1 when I went out after dark).