The former tribe Linne has divided into sections, from the white annulusobservable in the antennae of some, and from the colour of their scutellum: but these are often merely sexual characters[710].
Janus Nicius Crytraeus relates that a certain pope had a tame raven, which secreted the pope's ring, or annulus Piscatoris.
This was called the astronomical ring, 'annulus astronomicus.
Venus appeared plainly, and continued visible long after the annulus was dissolved, and I am told that other stars were seen by some.
In his account he says:—“A little before the annulus was complete a remarkable point or speck of pale light appeared near the middle of the part of the Moon’s circumference that was not yet come upon the disc of the Sun.
This diffraction effect is accepted; but the problem still remains how wide this annulus may be, and whether it may vary in width from one eclipse to another.
During the appearance of the annulus the direct light of the Sun was still very considerable, but the places that were shaded from his light appeared gloomy.
Stem= stout, equal, even or slightly reticulated at the top, the membranous annulus persistent, sometimes partly adhering to the margin of the pileus.
The annulus is torn, a part often adhering to the margin of the pileus and the gills.
This species resembles Agaricus autumnalis, in which the annulusis fugacious and the spores are longer.
Sometimes the pileus is pale-yellow and the stem and annulus white.
Frostiana, but its larger size, smooth pileus, lighter color and the absence of an annulus will easily distinguish it from that species.
The annulusis present in very young plants, but is often wanting in mature ones, in which state the plant might be mistaken for a species of Amanitopsis.
Care must be taken to determine the absence of an annulus or any trace of one.
The form with yellow stem and annulus and yellow or orange pileus may be considered the typical form of the species, but forms having the stem and annulus pale or white may be designated as variety pallidipes.
The annulus is very slight and evanescent or wholly wanting.
Stem with an annulus 1 Stem without an annulus 9 1.
Stem= equal, peronate, colored like the pileus, with a slight annulus near the top.
The ages and total lengths at the last annulus for 12 white suckers were: I, 2.
The ages and calculated total lengths at the last annulus for 40 channel catfish were: I, no fish; II, 7.
The ages and total lengths at the last annulus for 25 specimens are as follows: I, 1.
The ages and average lengths at the last annulus for 40 carp from the Big Blue River Basin were: I, 2.
Calculation of length at the last annulus for both scale-fish and catfish was made by direct proportion.
Ages and calculated total lengths at the last annulus for 50 specimens from 6-S are as follows: I, 3.
The ages and calculated total lengths at the last annulus for 42 freshwater drum from the Big Blue River were: I, 3.
The annulus ovalis is the raised margin surrounding this depression.
The inner plates of the annulus were cut out, and the work in the centre which consisted of granite ashlar set in cement was thoroughly bonded into the ring of masonry already built.
The rock in the annulus was dressed, and the space filled by a ring of granite ashlar masonry which was built to a height of about 7 feet all round.
The height of the annulus below the dome was such that it was not quite filled by the mud when the cylinder rested on the bottom.
The annulus is soon rubbed off, leaving a bare stem.
The annulus is very small and fugacious, being little more than the abrupt termination to the coating of the stem.
The annulus is frequently torn from the stem and is found adhering to the margin of the cap.
It consists substantially of an annulus or bulging cylinder of brass, with a steam-tight face both at its upper and lower edges, at which points it fits accurately upon a stationary seat.
This annulus may be raised or lowered without being resisted by the pressure of the steam, and in rotative engines it is usually worked by a cam on the shaft.
The sorus was regarded as a sort of compound fruit, the sporangium as a carpel, the annulus as its midrib, and the spores as the seeds.
What we have said of a straight liquid cylinder applies also to an annulus of liquid made by bending such a cylinder into a ring.
In B^1, D is a hollow cylinder closed at all points except at the cock G and the hole E, which are always below the level of the water in the annulus F, the latter being open to the air at its top.
Colour: Seven sets of black annuli disposed in threes, median annulusthe broadest; head black, with a yellow transverse band behind the eyes.
Its two branches, communicating with the cervical ganglion, surround the subclavian artery, forming the annulusof Vieussens.
Coprinus atramentarius, showing annulus as border line between scaly and smooth part of the stem (natural size).
The characters presented in the formation of the veil and annulus in this species are very interesting, and sometimes present two of the types in the formation of the veil and annulus found in the genus Amanita.
The formation of the veil and annulus can be easily followed in these figures.
In the genus Tricholoma the volva and annulus are both wanting, the spores are white, and the gills are attached to the stem, but are more or less strongly notched or sinuate at the stem.
The volva and annulus are wanting in this genus, and the spores are white.
The annulusis present on the stem, though disappearing soon in some species, and the stem is easily separated from the substance of the pileus.
The veil and annulus were also quite constant in their characters, though sometimes a tendency was manifested to split up more irregularly than at other times.
Also a little careless handling will remove such important characters as a frail annulus or volva, which often are absolutely necessary to recognize the species.
A much smaller slab, smaller in diameter and in thickness than the other, is cut into an annulus or ring; and this ring is turned by tools on both edges and both sides.
Now, suddenly lifting the disc from the plate, I release an annulus of liquid, which splits into the circle of very equal drops which you see projected on the screen.
Valerian speaks of the annulus bigemmis, and Gorleus furnishes us with the specimen engraved in Fig.
To return to our Male Fern, the annulus is plainly seen to start from the stalk of the sporangium at one side of the capsule, and it can be traced right over the top to a situation about half-way down on the other side.
Here it may be mentioned again that the structure of this annulus varies greatly in the different families, and is often a useful distinguishing feature.
A distinctive feature is the incomplete annulus of the sporangium.
The chief business of the annulus is to bring about the opening of the sporangium in such a way that the spores are violently expelled.
The sides of the capsule start to draw inwards, and ultimately the annulus suddenly straightens out and the sporangium is torn open, the actual rupture taking place just at the base of the ring.
The bucket and clack were placed some feet below the point to which the brine was raised by the column of fresh water descending in the annulus formed between the two tubes.
In commencing work, water was let down the annulus until the cavity formed in the salt became sufficiently large to admit of a few hours' pumping of concentrated brine.
Upon the face of the disc is fixed a projecting annulus a m, the outer and inner edges of which are cut into teeth.
This annulus is interrupted at f, and the teeth are continued round the edges of the interrupted portion so as to form a continued series passing from the outer to the inner edge and back again.
