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This membrane is ciliated, that is, it is studded with tiny hairlike projections, extending into the air passages. These are constantly in motion, much like the grain in a field when the wind is gently blowing. Their function is to prevent the entry of foreign particles into the air cells, for their propulsive motion is away from the lungs, toward the external air passages.
The canary band is wider, and of stronger colour. The black band around the lower half is yet wider, and of long velvety hairs. It extends in an oval above the transparent spot fully half an inch, then shades through peacock blue, and grey to the hairlike black line enclosing the spot. The under sides of the wings are pure tan, clouded and lined with shades of rich brown.
On the uplands a short, light-green, hairlike grass grew, intermixed with various resinous weeds, while in the lowland feeding grounds luxuriant patches of blue-joint, wild oats, and other tall forage plants waved in the wind. Along the streams and in the "sloos" cat-tails and tiger-lilies nodded above thick mats of wide-bladed marsh grass.
=The Air Tubes in the Lungs.= As the branch of the windpipe enters each lung it divides into smaller branches just like the limbs of a tree. These divide into still smaller tubes, which branch again and again until they are as small as a hair. These hairlike tubes have swollen ends called air sacs. The walls of the air sacs are much thinner than tissue paper.
The face of the detached sucker was also shown a honeycomb structure of waxy vegetable tissue, detailed with thousands of tiny ducts and hairlike feelers. "Some settler dropped the piece of brass out on a trail in Syrtis Major," Nance explained. "Later, it was found like this. Brass is something that people have almost stopped using. So, it was new to them.
But they are capable not only of multiplying in this way, but in other ways, by having a more ordinary and regular kind of offspring. Little eggs are hatched and the young are passed out by the way of the mouth, and they go swimming about as little oval bodies covered with a very curious kind of hairlike processes.
For drying, the first cutting may be secured during July, the second in late August or September. In all respects winter savory is used like summer savory, but is considered inferior in flavor. It grows from 2 to 4 feet tall, bears hairlike, highly aromatic leaves and heads of small yellow flowers. The plant is often found in old-fashioned gardens as an ornamental under the name of Old Man.
It is probable that being filled with the desire of exploration I only half-heartedly sought for work; at any rate, on the third day, I found myself far out upon the unbroken plain where only the hairlike buffalo grass grew beyond trees, beyond the plow, but not beyond settlement, for here at the end of my third day's ride at Millbank, I found a hamlet six months old, and the flock of shining yellow pine shanties strewn upon the sod, gave me an illogical delight, but then I was twenty-one and it was sunset in the Land of the Dakotas!
But they are capable not only of multiplying in this way, but in other ways, by having a more ordinary and regular kind of offspring. Little eggs are hatched and the young are passed out by the way of the mouth, and they go swimming about as little oval bodies covered with a very curious kind of hairlike processes.
In their stead, a limitless, upward shelving plain outspread, covered with a short, surly, hairlike grass and certain sturdy, resinous plants supporting flowers of an unpleasant odor, sticky and weedy. Bristling cacti bulged from the sod; small Quaker-gray sparrows and larks were the only birds. In the swales blue joint grew rank.
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