On our return from Thibou Jarvis's estate, we called at Weatherill's; but the manager, Dr. Daniell, not being at home, we left our names, with an intimation of the object of our visit. Dr. D. called soon after at our lodgings. As authority, he is unquestionable. Before retiring from the practice of medicine, he stood at the head of his profession in the island. He is now a member of the council, is proprietor of an estate, manager of another, and attorney for six.

The fact that such men as Dr. D., but yesterday large slaveholders, and still holding high civil and political stations, should most cheerfully facilitate our anti-slavery investigations, manifesting a solicitude to furnish us with all the information in their power, is of itself the highest eulogy of the new system. The testimony of Dr. D. will be found mainly in a subsequent part of the work. We state, in passing, a few incidentals. He was satisfied that immediate emancipation was better policy than a temporary apprenticeship. The apprenticeship was a middle state--kept the negroes in suspense--vexed and harrassed them--fed them on a starved hope; and therefore they would not be so likely, when they ultimately obtained freedom, to feel grateful, and conduct themselves properly. The reflection that they had been cheated out of their liberty for six years would sour their minds. The planters in Antigua, by giving immediate freedom, had secured the attachment of their people.

The Doctor said he did not expect to make more than two thirds of his average crop; but he assured us that this was owing solely to the want of rain. There had been no deficiency of labor. The crops were in, in season, throughout the island, and the estates were never under better cultivation than at the present time. Nothing was wanting but RAIN--RAIN.

He said that the West India planters were very anxious to retain the services of the negro population.

Dr. D. made some inquiries as to the extent of slavery in the United States, and what was doing for its abolition. He thought that emancipation in our country would not be the result of a slow process. The anti-slavery feeling of the civilized world had become too strong to wait for a long course of "preparations" and "ameliorations." And besides, continued he, "the arbitrary control of a master can never be a preparation for freedom;--sound and wholesome legal restraints are the only preparative."

The Doctor also spoke of the absurdity and wickedness of the caste of color which prevailed in the United States. It was the offspring of slavery, and it must disappear when slavery is abolished.

CONVERSATION WITH A NEGRO.

We had a conversation one morning with a boatman, while he was rowing us across the harbor of St. John's. He was a young negro man. Said he was a slave until emancipation. We inquired whether he heard any thing about emancipation before it took place. He said, yes--the slaves heard of it, but it was talked about so long that many of them lost all believement in it, got tired waiting, and bought their freedom; but he had more patience, and got his for nothing. We inquired of him, what the negroes did on the first of August, 1834. He said they all went to church and chapel. "Dare was more religious on dat day dan you could tire of." Speaking of the law, he said it was his friend. If there was no law to take his part, a man, who was stronger than he, might step up and knock him down. But now no one dare do so; all were afraid of the law,--the law would never hurt any body who behaved well; but a master would slash a fellow, let him do his best.

VISIT TO NEWFIELD.

Drove out to Newfield, a Moravian station, about eight miles from St. John's. The Rev. Mr. Morrish, the missionary at that station, has under his charge two thousand people. Connected with the station is a day school for children, and a night school for adults twice in each week.