u 
Casey .4. Wood. 
merited, irregular, sausage-like, segments. They are often deeply 
indented about their middle, thus presenting a picture entirely 
unlike the lid edges of man. 
These segments undergo, during life, apparent changes in size 
and shape, probably as the result of winking, partial or complete. 
Close inspection of them shows that some of these segments are 
Fig. 1 — Drawing from Life (much enlarged) Showing the Convoluted 
Margins of the Lids and the Arrangement of the Feathers Close to the Pal- 
pebral Margin. (Wood and Slonaker). 
crossed by indentations which may become entirely smooth again ; 
other parts, smooth and rounded a moment before, may present a 
creased or divided appearance, so that photographs or drawings of 
the eye of the Sparrow give varying results so far as the margins, 
of the lids are concerned. In Passer, as in most birds, there is no 
well defined intermarginal space. A feather (eyelash) is general! v 
placed below each palpebral segment, but the former may be miss- 
