HAUGHTON — ON HEMIPLEGIA IN A MONKEY. 55 



tion to this important fact the mortality among the Monkeys in the 

 Dublin Gardens had recently been greatly diminished : these animals 

 were now allowed oranges, apples, and figs ; while those that, in a 

 state of nature, were in the habit of eating small lizards and frogs, were 

 now allowed to partake of conger eel. The result of the change in the 

 dietary had been to diminish in a remarkable manner the mortality 

 among the inhabitants of the Monkey house. 



Dr. Benjamin Hinde, Staff Assistant- Surgeon, stated he was fortu- 

 nately able to complete the antecedent history of this interesting case 

 of Monkey paralysis. This animal had been originally in his possession, 

 having been given to him on the 27th of December, 1860, being at that 

 time six months old. He was very docile, and particularly active. 

 After being in Dr. Hinde's possession for about a fortnight, he broke 

 the string by which he was confined, and went down to the river side, 

 where he was immediately chased by a black soldier of the 2nd "West 

 India Regiment. This soldier brought him back to Dr. Hinde about 

 two hours after his escape ; he was screaming violently ; his right side 

 was paralyzed, and the left side of his head swelled to at least double its 

 usual size. The soldier denied having given the animal a blow, but it 

 was afterwards discovered that he had been seen throwing stones at him. 

 For about four days the Monkey lay on his side, unable to move, the 

 sphincters were relaxed, and he had completely lost the sight of one eye. 

 In a week or ten days he began to attempt to walk, dragging the leg 

 most painfully; the swelling of the head subsided, so as to allow of the 

 fracture being examined, and his sight gradually returned. He rapidly 

 recovered the use of his leg, but a careful observer could see that he was 

 rather uncertain in his grasp, and frequently missed his footing. His 

 hand never relaxed, but he recovered the partial use of his forearm. Dr. 

 Hinde brought him home to Kerry in May, 1861, where he spent the 

 winter of 1861-62, chained in the kitchen, beside an American cooking 

 stove ; and in fine weather he would follow his master like a dog, and 

 seemed to have a great objection to be left alone. On Dr. Hinde's re- 

 turn to Africa, " Jacko" was given to Mr. Corbett, of Castleconnell, 

 who ultimately presented him to the Dublin Zoological Gardens, where 

 he came under the observation of the Rev. Dr. Haughton. 



The Rev. Dr. Haughton read to the meeting a letter from Mr. R. A 

 Duke, C. E., recording the occurrence of large quantities of a fine- 

 grained yellow powder, on three or four occasions, after a night's rain, 

 in the neighbourhood of Templehouse, county of Sligo. It was strewed 

 in considerable quantities on walks, roads, &c, and grass, as it was 

 shown by its sticking to the nostrils of horses and cows grazing ; it fell 

 also on the roofs of houses. This yellow rain dust was first observed on 

 the 6th of May, and fell afterwards on four occasions, of which the last 

 was the 17 th of May. 



Dr. Haughton examined it chemically, and found 16 parts of sul- 

 phur in 1050 parts of yellow powder, omitting clayey particles ; this 



