In the latter part of 1848, owing to some unfortunate exposure to the weather, he was most violently attacked with ague in the face, so severe as to cause the whole face to swell so much as to close one of the eyes entirely. The attack lasted in its effects for several days, and was exceedingly painful. Though moved with the keenest regret at the pain we knew he must suffer, still we could not but admire the strength of mind and calm philosophy with which he endured it. Not a murmur escaped his lips, and intervals occurring between the most severe moments of his suffering were devoted to writing or study, while the constant kind offices of those about him, and more particularly those of his dearly-beloved partner and children, were ever received with grateful words, and tokens of a full appreciation of the warm love that prompted them. In the summer of 1847, the School-street Society requested of Mr. Ballou, through its standing committee, that he would sit for a full-length portrait, to be the property of the society, and to be hung in Murray Hall, adjoining the church. Mr. Ballou agreed to their proposition, and granted the requisite sittings, and a magnificent portrait was produced. The picture is as large as life. The preacher is represented standing in the pulpit of the School-street church, the fingers of the right hand inserted in the Bible, the left slightly extended. The likeness and expression are perfectly life-like, and true to the original. From this excellent painting several copies have been taken for his family and friends. This painting was the source of a great degree of satisfaction to the society and Mr. Ballou's friends generally, for, in common with many others left of him, it is excellent as a likeness, and therefore is a pregnant page in his history; for, of the three principal channels of judging and arriving at the knowledge of character, namely, looks, words and actions, the former is the most faithful. Professions pass for nothing, actions may be counterfeited, but a man's _looks_ he cannot hide. A modern writer, in language perhaps too forcible, says:--"A man's whole life may be a lie to himself and others, and yet a picture painted of him by a great artist would probably stamp his true character on the canvas, and betray the secret to posterity." Subscribing in a large degree to this principle, we consider that the paintings, busts, medallions, and likenesses generally, of Mr. Ballou, may be highly valued as speaking his true character in the expression, and telling a faithful story of the original.