The centres for the antennal nerves form ganglionic swellings on the oesophageal connectives.
(1904), p. 681; Marshall Ward, " On the Tubercular Swellings on the Roots of Vicia Faba," Phil.
When these plants were examined they had small swellings or nodules on their roots, while those grown in sterile sand without soil-extract had no nodules.
When the conic is an ellipse the meridian line is in the form of a series of waves, and the film itself has a series of alternate swellings and contractions as represented in figs.
When the resolution is effected in a perfectly periodic manner, each drop is in the same phase of its vibration as it passes through a given point of space; and thence arises the remarkable appearance of alternate swellings and contractions described by Savart.