Of the picture of “An Experiment with an Air Pump,” which called forth such praise from the Messrs. Redgrave, I am enabled, through the courtesy of the Proprietors of the “Art Journal,” to give an illustration. It was presented to the National Gallery, a few years ago, by Mr. Walter Tyrrell.

“AN EXPERIMENT WITH AN AIR PUMP.”

“EDWIN.”

From Dr. Beattie’s “Minstrel.” Etched by Mr. F. Seymour Haden.

Mr. Thomas Haden, of Derby, sat for this picture.

Original picture in the possession of the Right Honourable Lord Houghton.]