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I30 THE CONDOR [ Vol. IV were intermingled. The rim of the mass floated about four inches above the water, and the cavity, between one and two inches deep, contained five eggs, loosely covered with material like that of the nest: These eggs were in- cubated to blood and more, and had ac- quired the brownish, baked appearance peculiar to grebes' eggs after continued incubation and exposure to the nest material. The attractions of the swamp were not to be resisted, and the next morn- ing, June 5, found us pushing among the reeds. Again fortune favored the collector, for persistent search of the buckbrush disclosed nest No. 2, con- taining four eggs, uncovered. As the size of the nest complement of C. bcelli offered a good subject of investi- gation, the nest was left undisturbed, and revisited on June 7- No additions had been made and the four eggs were taken. This nest was in the buck brush, about the full length of the boat, sixteen feet, in more than two feet of water. It was made in all respects like nest No. ?, though the material was piled upon coarse twigs of buck brush, apparently brought up from the bottom. Upon the second visit the eggs were found covered. Incubation varied from blood to far advanced. Diligent search of the swamp failed to yield further returns until June x2, when nest No. 3 of C. ]?olbcelli was found, containing two eggs, uncovered. Following my usual method, I left this nest undisturbed until June ?4, when it contained three eggs, uncovered, with no sign of covering material about the rim of the nest. June ?7 was the fate- ful day for No. 3, when it was found to contain five eggs, all uncovered, one having been evidently deposited that morning. As I approached it on my usual morning round, the owners or other grebes nttered their guonk beyond the shrubbery, but it seemed impossible to surprise them anywhere near the nest. This structure was four inches in height above the water, 24 inches across at the surface of the water, cav- ity 7.5 inches and 9 inches minor and major axes, and 2.25 inches deep. It was in two feet of water, in a very open situation among sparsely growing young reeds. These eggs were very hand- some , all being fresh and having the delicate pale greenish color when washed; in my desire to have them per. fect, however, I broke one in the wash- ing process. On June ?4, I had found a new nest in the course of my morning quest. It then contained three eggs, covered; it was inspected on June ?7, and as the complement had not increased, the three eggs were taken. Nest No. 4 was in the edge of a clump of old reeds, made as usual. It was 2o inches across at the water, 4 inches in height, the cavity being 6 inches and 7 inches in width at the rim, and ?.5 inches deep. The eggs were well covered in this in- stance, though one .had been displaced from its bed and was floating among the nest material beneath the water, where it had been entangled. Incubation had advanced to a considerable extent. June ?4 was my luckiest morning, for then I had found what was to be nest No. 5, contait?ing one egg. On June ?7 it contained three eggs, which were again left for developments. The one egg ?'as covered on June t4; the three eggs were also covered; on June 2o four eggs were the reward of my patience and repeated trips among the reeds. The fourth egg had a: parently been deposited that morning, but as the fifth one was due on that day and had failed to materialize, 'I gathered in the four uncovered eggs. This nest was a large mass o[ dried decaying material an- chored among thick reeds, with two very evident-approaches through the reeds to open water. The height was 3.5 inches, diameter at surface of water 24 inches, cavity 7 inches across, 2 inches deep. In my round of June ?7, I h:?d