Of a thousand parts of the potato, Sir H. Davy found about a fourth nutritive; say, 200 mucilage or starch, 20 sugar, and 30 gluten.

Look back, Davy, to Litchfield,run up through the time that has elapsed since you first knew Mr. Johnson,and enjoy with me his present extraordinary Tour.

He gave notice of their intended journey: "Davy Garrick," he said, "will be with you next week; and Johnson, to try his fate with a tragedy, and to get himself employed in some translation, either from the Latin or French.

Two special things are worth seeing at Cambridge, a portrait of Cromwell at Sidney, and a better of Dr. Harvey (who found out that blood was red) at Dr. Davy's.

Martin Davy, Master of Caius.

DAVY, Sir Humphry, iv. 119, n. 1. DAVY, Serjeant, iii. 87, n. 3. DAWKINS, 'Jamaica,' iv. 126.

DAVY, Sir Humphry, iv. 119, n. 1. DAVY, Serjeant, iii. 87, n. 3. DAWKINS, 'Jamaica,' iv. 126.

384, n. 2; Cumberland's Odes, iii. 43, n. 3; iv 432; Dane, letter from a, v. 46, n. 2; Davies, letter from, iii. 223, n. 2; Davy, called, v. 348; death, his, iii. 371; 'eclipsed the gaiety of nations,' i. 82; iii. 387; decayed actor, will soon be a, ii. 439; decent liver, a, iii. 387; declaimer, no, iv.

It is well known that the favorite form of lamp with the firemen is the Davy, because it shows more readily the presence of small quantities of gas; but the Davy was some years ago condemned, and is now strictly prohibited in all Belgian and many English mines.

It is well known that the favorite form of lamp with the firemen is the Davy, because it shows more readily the presence of small quantities of gas; but the Davy was some years ago condemned, and is now strictly prohibited in all Belgian and many English mines.

Recent experience, gained by repeated experiments with costly apparatus, has resulted in not only proving the Davy and some other descriptions of lamps to be unsafe, but some of our Government Inspectors and our most experienced mining engineers go so far as to say that "no lamp in a strong current of explosive gas is safe unless protected by a tin shield.

Moreover, the tin shield lamp, when inclined to one side, is extinguished (though not so easily as the Mueseler); and as the inlet holes are 6 inches from the top, it does not show a thin stratum of fire-damp near the roof as perceptibly as the Davy, which admits of being put in almost a horizontal position.

Although the Davy lamp was, nearly fifty years ago, pronounced unsafe, by reason of its inability to resist an ordinary velocity of eight feet per second, yet it is still kept in use on account of its sensitiveness.

Its advocates maintain that a mine can be kept safer by using the Davy, which detects small quantities of gas, and thereby shows the real state of the mine, than by a lamp which, though able to resist a greater velocity, is not so sensitive, and consequently is apt to deceive.

Assuming the Davy lamp to be condemned (as it has already been in Belgium and in some English mines), the Stephenson and some of the more recently invented lamps pronounced unsafe, then if greater shielding is recommended the question is, what means have we for detecting small quantities of fire-damp?

The object of the present paper is to show that with the assistance of the fire-damp detecter, the tin shield, or any other description of lamp, is made as sensitive as the Davy, while its other advantages of resisting velocity, etc., are not in any way interfered with.

He reported the stall to be free from gas, but when the manager and steward visited it with the detecter, which they applied to the roof (where it would have been difficult to put even a small Davy), it drew a sample of the atmosphere which, on being put to the test tube in the tin-shield lamp, at once showed the presence of fire-damp.

Out of twenty-eight tests in a mine working a long-wall face the Davy showed gas only eleven times, while the detecter showed it in every case.

If, therefore, the deputies, whose duty it is to look for gas and travel the most dangerous parts of the mine, are obliged to use the Davy on account of its sensitiveness, may it not be said that, as their lamps are exposed equally with the workmen's to the high velocities of air, they are the weak links in the safety of the mine?

Davy and Dorothy cut out dolls with clothes to dress.

Davy and Dorothy cut out dolls with clothes to dress.

Yankee thunder, the legendary life of Davy Crockett.

Surprise for Davy.

Yankee thunder, the legendary life of Davy Crockett.

Surprise for Davy.