_Eggs._--Four eggs is probably the usual number laid by the stilt sandpiper. They are ovate pyriform in shape. The only eggs I have been able to locate are the three sets in the United States National Museum, collected by MacFarlane. J. H. Riley has kindly sent me descriptions and measurements of these. In the set of four eggs the ground color is "ivory yellow" with large irregular blotches and spots of two shades of "mummy brown," and a few rather large shell markings of "hair brown," the latter mostly towards the larger end. The spots and blotches are a little heavier towards the larger end, also, but in no sense do they form a ring. Another set of two eggs is similar, but the spots and blotches are much smaller, more numerous, and more evenly distributed over the surface; some of the "mummy brown" spots are even becoming scrawls. The third set of two eggs are like the set of four, except that the ground color is "pale olive buff" and the "mummy brown" blotches are on the average smaller. The measurements of these 7 eggs average 35.5 by 25.1 millimeters; the eggs showing the four extremes =36= by 25, 35 by =26=, =35= by 25 and 36 by =24.5= millimeters. _Young._--Mr. McFarlane (1891) says: "On one occasion we could not help admiring the courage and ingenuity displayed by both parents in defense of their young, which resulted in saving two of the latter from capture." _Plumages._--In natal down the stilt sandpiper closely resembles several of the other species of tundra-nesting sandpipers. It can generally be recognized by its relatively longer legs and by its longer bill, with a broader tip. The head markings are also a little different. The forehead, cheeks, and throat are dirty white, with a broad, black, median stripe from bill to crown, another (loral) from bill to eye, and a short one (malar) below it. The crown, back, wings, thighs, and rump are variegated or marbled with black (predominating) and dull browns, "tawny" to "ochraceous tawny," and profusely dotted with dull white terminal down tufts; these dots form a distinct circle around the crown patch, below which the whitish sides of the head are marked with "ochraceous tawny." The lower throat is washed with pale buff, and the rest of the under parts are white.