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Updated: September 10, 2025
The precipitated emulsion is now taken into the dark room and washed until the wash water shows no trace of color; if there be a large quantity, this is best done on a fine muslin filter; if a small quantity, by decantation. Having been thoroughly washed, I dissolve the pellicle in water by immersing the beaker containing it in the water bath.
Dr Kane says: "At such temperatures chloric ether became solid, and carefully prepared chloroform exhibited a granular pellicle on its surface. Spirits of naphtha froze at 54 degrees below zero, and oil of sassafras at 49 degrees. The oil of winter-green was in a flocculent state at 56 degrees, and solid at 63 degrees.
I mentioned at the outset that seven or eight years ago I had tried Kennet's pellicle and failed, but got one or two results which I retained as curiosities till only a month or two ago; but up to that time I cannot say they had faded in the least, and I have here a specimen made three years ago, which I have purposely subjected to very severe treatment.
The process of preparing it is very simple: being taken from the trees, it is placed in water for a few days, until the outer pellicle has rotted; it is then dried, when a long fibre resembling horse hair is obtained. Natchez, in the state of Mississippi, is about 300 miles above Orleans, and is the largest and wealthiest town on the river, from that city up to St. Louis.
One character, which is unique among insects, is peculiar to Ephemerids; the adults issuing from the pupal envelope undergo still another moult in divesting themselves of a thin pellicle that covers the body, wings, and other appendages. This is what is called the subimago, and precedes the imago or perfect state of the insect.
I saw near the creek some bushes of the white maple, the shumate of the small species with the winged rib, and a species of honeysuckle much in it's growth and leaf like the small honeysuckle of the Missouri only reather larger and bears a globular berry as large as a garden pea and as white as wax. this berry is formed of a thin smooth pellicle which envellopes a soft white musilagenous substance in which there are several small brown seed irregularly scattered or intermixed without any sell or perceptable membranous covering. we had proceeded about four miles through a wavy plain parallel to the valley or river bottom when at the distance of about a mile we saw two women, a man and some dogs on an eminence immediately before us. they appeared to vew us with attention and two of them after a few minutes set down as if to wait our arrival we continued our usual pace towards them. when we had arrived within half a mile of them I directed the party to halt and leaving my pack and rifle I took the flag which I unfurled and avanced singly towards them the women soon disappeared behind the hill, the man continued untill I arrived within a hundred yards of him and then likewise absconded. tho I frequently repeated the word tab-ba-bone sufficiently loud for him to have heard it.
The circle round the hollow eyes was red, and the eyelids were like the pellicle of an egg. Nothing remained of the body, once so captivating, but an ignoble, bony structure. As Flore caught sight of the visitors, she drew across her breast a bit of muslin which might have been a fragment of a window-curtain, for it was edged with rust as from a rod.
It is on this skiff that the first transformation takes place, whereafter the larva, which is now organized to live in a glutinous environment, drops off the raft into the pool of honey and leaves its empty skin, split along the back, clinging to the pellicle of the egg. At this stage we see floating motionless on the honey a milk-white atom, oval, flat and a twelfth of an inch long.
If kept in a cool dry place, it may be preserved for a long time; but if it be badly corked, and kept in a damp place, it will soon spoil. Examine it from time to time, by placing a strong light behind the neck of the bottle; and if any pellicle appears about it, it must be boiled up again with a few peppercorns.
The circle round the hollow eyes was red, and the eyelids were like the pellicle of an egg. Nothing remained of the body, once so captivating, but an ignoble, bony structure. As Flore caught sight of the visitors, she drew across her breast a bit of muslin which might have been a fragment of a window-curtain, for it was edged with rust as from a rod.
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