THE SUBMERGED TENTH 
not discover, except where a Grebe of either kind 
had laid in a nest of the other. It would be inter- 
esting to know what is the state of mind that causes 
various species of birds that colonize together to lay 
in each other’s nests. It may be through mistake, 
yet, 4s Im the “present, case, when the eggs of one 
kind are twice the size of the other, it seems as 
though the bird would detect the difference. I can 
imagine, on the other hand, that the little Grebe 
might find the larger nest attractive, but not so 
readily what the big Grebe thinks as it finds the 
smaller home which it has usurped about sinking 
under its weight. 
There were no street-signs in the city, and, 
though city bred, I found myself rustic enough to 
be in danger of getting lost in the colymbine 
(Colymbus) labyrinths. As luck would have it, the 
usual daily June thunder-shower (of this season) 
came up before I was half through my exploration. 
Covering the camera and plates with the rubber 
cloth, my upper half was soon as wet as the rest. 
For a considerable time the sun was obscured. 
There was no way of looking over the tops of the 
Canesmtonmote the direction of the shore, and [| 
might have wandered about there indefinitely, had 
not the welcome sun again shone forth. Next 
time I brought a compass, and felt more secure. 
Here and there in this city were pond-like 
openings in the canes, with open water, the city 
parks, I ‘called them—breathing- places fer the 
Grebe-multitudes. Standing in water waist-deep or 
more by one of these, I shivered and watched the 
ways of the Grebes. This opening was some thirty 
2T 
4 
