Minerals also abound, and ten thousand tons of a fine asphaltum have been shipped in a year.
Asphaltum appears to be a very general product of the Island and of the water along its shores.
Laying aside all considerations of comfort and economy, which in themselves are sufficient to warrant its construction, asphaltum is the best paving material from a hygienic standpoint.
Plaster work is rendered impermeable by mixing artificial or natural asphaltum with it.
Put 48 pounds of foreign asphaltum into an iron pot, and boil for 4 hours.
In an iron pot, over a slow fire, boil 45 pounds of foreign asphaltum for at least 6 hours; and during the same time boil in another iron pot 6 gallons of oil which has been previously boiled.
The varnish ought always to be made harder in summer than in winter, and it will become so if it be suffered to boil longer, or if a greater proportion of the asphaltum or brown rosin be used.
Asphaltum enters into the composition of hydraulic cements, and into that of black varnishes, called japans, for coating iron trays, &c.
But probably the most remarkable locality of asphaltum in the world is the entire basin, or rather plain of it, in the island of Trinidad, called the Tar Lake.
The portion of asphaltum which does not dissolve in ether is very soluble in oil of turpentine, and in oil of petroleum; but less so in oil of lavender.
The greater part of the asphaltum to be met with in commerce comes from the Dead Sea, on whose shores it is cast up and gathered; whence it has got the name of Jewish bitumen.
According to John, asphaltum may be decomposed, by different solvents, into three distinct substances.
Oak may be overgrained by using a very thin coating of asphaltum for the shading color; thin with oil and spirits.
A little Vandyke brown will deepen the color, or thin asphaltum may be used in shading or overgraining.
For, as water must always find its level, through the same opening by which the asphaltum rises, the water of the lake would inevitably leak out, and lose itself in the mighty current.
Thirdly, the appearance, in the Gulf, of bubbles of asphaltum constantly rising to the surface, and spread over it for a considerable distance.
The addition of natural asphaltum doubtless caused the name of "asphaltum roofing paper.
The roofing paper prepared with distilled tar is perhaps most suitably called asphaltum paper, as this has been used in its manufacture.
A deep asphaltum has overpowered lightness and delicacy, and has itself become obscure.
About four o'clock in the afternoon all the known Paris figures are lounging upon the asphaltum within this charmed space.
And now we pass the asphaltum of the boulevard of boulevards--that known as "the Italiens.
Dissolve one part of asphaltum in four parts of oil of turpentine, and lamp-black or black-lead, in fine powder, in sufficient quantity to render of proper consistency to print with type.
Asphaltum Grade D" may also be used in the same way.
What is the effect of coal tar or asphaltum applied to the bark of trees?
Owing to the attraction of the heat by the black color, asphaltum would increase the injury by absorption of more heat.
The two bitumens of the greatest geological importance are asphaltum or mineral pitch and petroleum; but these substances are too familiar to require any farther description here.
All seams on the inside should be painted with asphaltum in order to cover any particles of solder.
The asphaltum is to keep the acid into which the metal is to be immersed later from eating any part of the metal but the background.
When the metal has been etched to the desired depth, about 1-32 of an inch, remove it and clean off the asphaltum with turpentine.
The paper is laid out as shown, and the edges are cemented with asphaltum and then tacked to the side of a fence or shed.
For etching, first cover the metal with black asphaltum varnish, on the back and all the parts that are not to be touched with the acid.
After these brackets are made they are coated with asphaltum or Japan; or the brackets may be painted or stained any desired shade.
When the etching has been carried as far as desirable, take the copper from the bath and remove the asphaltum by scraping it as clean as possible, using an old case knife.
Cover the metal over with two coats of black asphaltum varnish, allowing each coat time to dry.
Remove the paper, and, with a small brush and black varnish or asphaltum paint, cover the part not to be eaten by the acid of the bath into which the metal is to be immersed.
With a small brush and ordinaryasphaltum or black varnish, paint the design, the margin and the entire back of the metal.
The next moment Barclay's heels were pounding on the asphaltum behind him, and then Barclay's hand fell upon his shoulder and whirled him round.
A brisk wind whirled a few dried leaves in whispering eddies across the smooth asphaltum of the driveway, but beyond this and the peevish sputtering of the arc-light on the opposite corner there was no sound.
Asphaltum occurs in vast quantities in southern California, and also in Cuba; these deposits resemble the celebrated asphaltum of Trinidad and give promise of being fully as extensive and valuable.
His process consisted of coating a piece of plated silver or glass with asphaltum or bitumen, and exposing the plate in the camera for a time varying in length from four to six hours.
The light acted on the asphaltum in such a way as to leave the image on the plate.
Asphaltum dissolved in amber varnish and oil of turpentine, and coloured with lampblack.
It is not necessary to use any such preparation when your leather work is sufficiently hardened by drying; take some asphaltumvarnish and stain it carefully all over with a brush.
Pretty boxes can be made of any common wood, by simply staining them with asphaltum varnish.
Descending the Sierra de Meapire to the west, we find at first a hollow ground (tierra hueca) which, during the great earthquakes of 1766, threw out asphaltum enveloped in viscous petroleum.
There is another spring of asphaltum on the eastern coast of the island, in the bay of Mayaro.
The pit which throws up asphaltum in the bay of Mayaro, on the eastern coast of the island of Trinidad, southward of Point Guataro.
And to-day I bought a mummy, the mummy of a great Egyptian prince, for I must have good mummy asphaltum to preserve the faces of my clock from the influence of time.
He attributes wonderful powers to the powdered asphaltumof mummies.
Asphaltum is a bituminous pitch, as you know," said Leigh, getting down off the high stool and preening himself like a bedraggled raven.
Shawmut Avenue), and in this pot melt your asphaltum over a slow fire, taking very good care not to let it boil over, or otherwise you might possibly set the house afire.
I do not use the blackasphaltum varnish for stopping out, but a transparent varnish that is simply white resin dissolved in alcohol.
Add the asphaltumto the turpentine little by little; shake the bottle containing the mixture frequently; keep it in the sun or a moderately warm place.
Nearly all recipes order the wax to be melted first, but as the asphaltum requires a greater heat to reduce it to a fluid condition, it is best to commence with the least tractable substance.
When the asphaltum has melted add the wax gradually, stirring all the while with a clean glass or metal rod.
It is viscid enough to remain just where it is put, and is as perfect a protection as any asphaltum varnish.
It would take altogether too long to wait for the perfect drying of the asphaltum varnish, nor is it necessary.
It has a great advantage over asphaltum varnish, as it does not flow along a line.
A content ofasphaltum is readily detected by mixing the Peru balsam with ether compounded with about ⅛ alcohol.
Any asphaltum present remains undissolved, and may be collected upon a filter.
Give the whole tank two coats of black asphaltum varnish to protect it from the action of the developer.
Illustration: Skates Made of Wood to Take the Place of the Steel-Runner Kind and Prevent Sprained Ankles] The best paint for paper roofing is asphaltum varnish.
She therefore, carefully preserves these precious bottoms of her broken ollas, even cementing together fractured ones, when not too badly shivered, with a mixture of pitch or mineral asphaltum and sand.
There are produced from Texas crude oil which has an asphaltum base, and Pennsylvania crude oil which has a paraffin base, high boiling-point petroleum spirits which have come into wide use as paint and varnish thinners.
The above list will hopefully give you a few useful examples demonstrating the appropriate usage of "asphaltum" in a variety of sentences. We hope that you will now be able to make sentences using this word.
