The Admiralty consequently ordered Captain Dayman, an old friend and shipmate of mine, to ascertain the depth over the whole line of the cable, and to bring back specimens of the bottom.

[Footnote 1: See Appendix to Captain Dayman's Deep-sea Soundings in the North Atlantic Ocean between Ireland and Newfoundland, made in H.M.S. "Cyclops."

In working over the soundings collected by Captain Dayman, I was surprised to find that many of what I have called the "granules" of that mud were not, as one might have been tempted to think at first, the more powder and waste of Globigerinoe, but that they had a definite form and size.

" [Footnote 6: Appendix to Report on Deep-sea Soundings in the Atlantic Ocean, by Lieut.-Commander Joseph Dayman.

Our stay in the Derwent, during which land and seabreezes prevailed, afforded me an opportunity of comparing our compasses at the magnetic observatory, established since our last visit by the Antarctic expedition, and left in charge of Lieutenant Key and Messrs. Dayman and Scott, officers belonging to it.

Lieutenant Berryman, U.S.N., in the Arctic, and Lieutenant Dayman, R.N., in the Cyclops, made a careful survey.

The height of the Pico dos Bodes, determined in the usual way by the mountain barometer, was found by Lieutenant Dayman to be 3677 feet; his observations on the magnetic dip and intensity (for which see the Appendix) are interesting, as showing a great amount of local attraction at the summit.)

At one P.M. of each day, when the weather was favourable, the ship was hove-to for the purpose of obtaining observations on the temperature of the water at considerable depths, under the superintendence of Lieutenant Dayman.

Lieutenant Dayman, R.N.) BOAT CAPSIZED.

The requisite shore observations were made by Captain Stanley and Mr. Obree, while Lieutenants Dayman and Simpson conducted the sounding.

During this passage some important observations were made by Captain Stanley and Lieutenant Dayman to determine the height, length, and velocity of the waves.

Meanwhile a minute survey was made by Lieutenants Dayman and Simpson of the inner entrance to Port Jackson, where a reef, called the Sow and Pigs (distinguished by a beacon and a light vessel) in the middle of the passage, leaves only a narrow available channel on either side.

Meanwhile, Lieutenant Dayman, in the Asp, laid down the coastline and neighbourhood as far as the next station twenty or thirty miles in advance.

Captain Stanley's azimuth and altitude observations, taken at two stations at the base, the distance between having been measured by the micrometer, give its height as 1,161 feet; and Lieutenant Dayman's barometrical measurement makes it 1,151 feet, above the sea level.)

The ship was moved in one and a half miles to the southward, towards the land, and anchored in ten fathoms, close to a reef covered at high-water, and about a mile distant from a small bank of dead coral and sand; the former of these was selected by Captain Stanley as the starting point of the survey, and on the latter magnetical observations were made by Lieutenant Dayman.

Lieutenants Dayman and Simpson, with the pinnace and second galley, returned to the ship after an absence of several days.

The bowman, with the anchor in his hand, was struck on the head with a stone-headed axe, the blow was repeated, but fortunately took effect only on the wash-streak; another of the crew was struck at with a similar weapon, but warded off the blow, although held fast by one arm, when, just as the savage was making another stroke, Lieutenant Dayman, who until now had excercised the utmost forbearance, fired at him with a musket.

In the course of the same day, when Lieutenant Dayman was close inshore with the galley laying down the coastline, he had occasion to approach the native village before alluded to, and observed the men following the boat along the beach within gunshot, sharpening and poising their spears, violently gesticulating and calling out loudly, as if daring him to land.

A favourable opportunity was now afforded for punishing the natives for their treachery; but from highly commendable motives of humanity, no steps were taken for this purpose by Lieutenant Dayman, and they were treated with silent contempt.

OBSERVATIONS ON THE TEMPERATURE OF THE SEA, MADE DURING THE VOYAGE OF H.M.S. RATTLESNAKE, DECEMBER 1846 TO JULY 1847, BY LIEUTENANT J. DAYMAN, R.N. LIEUTENANT AND ASSISTANT SURVEYOR.

J.D.: Lieutenant J. Dayman.

W.H.O. ... APPENDIX 3. OBSERVATIONS OF THE MEAN MAGNETIC INCLINATION, MADE ON SHORE IN THE VOYAGE OF H.M.S. RATTLESNAKE, BY LIEUTENANT J. DAYMAN, R.N. INSTRUMENTS EMPLOYED: ROBINSON'S 6-INCH INCLINOMETER; FOX'S DIPPING APPARATUS.