In this the feathers of the top of the head are very singular, looking like glossy curled shavings of black horn or whalebone, the effect being due to the dilatation of the shaft and its coalescence with the consolidated barbs.
Attempted drives from east to west--similar to the contrary movements of 1805, 1807, and 1809--precede the great westward movement; there is the same coalescence into a group of enormous dimensions; the same adhesion of the people of Central Europe to the movement; the same hesitation midway, and the same increasing rapidity as the goal is approached.
Have become obliterated by coalescence of their walls, so that the entire endoderm of the umbrella is in the condition of the endodermlamella.
Combination was associated with the coalescence of these charges, and the nature of the resulting compound showed the nature of the residual electricity.
If the water be soapy, and especially if it contain a small proportion of milk, coalescence ensues without the help of electricity.
By coalescence of the endoderm-layers, the coelenteron may be reduced to vessels, usually eight in number, opening into a ring-sinus surrounding the pore.
Palmen (1884) on these ducts have shown that in may-flies and in female earwigs the paired mesodermal ducts open directly to the exterior, while in male earwigs there is a single mesodermal duct, due either to the coalescence of the two or to the suppression of one.
In accordance with the saltatorial habits of the members of this order, the vertebrae, which number from 40 to 60 in the Caudata, to upwards of in the Apoda, have become reduced to Io as the normal number, viz., eight praecaudal, one sacral and an elongate coccyx or urostyle, formed by coalescence of at least two vertebrae.
Laticiferous vessels arise by the coalescence of originally distinct cells.
In biology conception is the coalescence of the male and female generative elements, producing pregnancy.