A Monticello dispatch to the New York Herald says:

Mrs. Halliday in prison here refuses to take any solid food and is rapidly failing in health. For more than three weeks her food has been injected. Sometimes she will drink a little milk to oblige Sheriff Beecher, but if any attempts are made to make her eat or drink she immediately becomes sullen and refuses all sustenance.

She asked the Sheriff on Nov. 3 last, to write the following letter to Mr. William Burch, Greenwich, Washington County, N.Y.:

"Dear Sir, Mrs. Halliday, sister of James Duey, desired me to ask you to see her sister and have her come to Monticello. Mrs. Halliday says she will tell her sister everything in connection with the crimes of which she is accused.

Mrs. Halliday also requested me to have you tell Mr. Billings that she knows who shot his wife. If Mr. Billings will come and see her she will tell him all about it.
Respectfully yours.
Harrison Beecher, Sheriff.

P.S. Mrs. Halliday desired to have Mr. Wright, the attorney of your place, come and see her."

The letter was returned by the Postmaster of Greenwich.

In talking with the Sheriff this afternoon, I asked: "has anything particular been said by her about the coming trial?"

"No, but recent investigations show that Mrs. Halliday is in all probability connected with the famous Whitechapel murders.

"It has been proved that she was in Europe at the time. She frequently refers to the subject, both when she is in possession of her mental faculties and when she is raving."

In addition the Sheriff said: "I said to Mrs. Halliday, 'Lizzie, you are accused of the Whitechapel murders. Are you guilty?'"

"'Do you think I am an elephant?' she replied. 'That was done by a man.'"

Mrs. Halliday is constantly speaking of these murders. She also talks of many women brought from New York who have been robbed, killed, cut up in small pieces and dumped in the Hudson river.