398 



neath the cartilages there appear to be large hernia! sacs opening into 

 each abdomen, into which, on coughing, portions of the intestine are 

 propelled, as far as the middle of the band ; though in ordinary cir- 

 cumstances these hernice are not apparent. The entire band is co- 

 vered with common integument ; and when the boys face each other, 

 its length at the apex is one inch and three quarters, and at the lower 

 edge not quite three inches. Its breadth from above downwards is 

 four inches, and its greatest thickness nearly two inches. In the 

 centre of the lower edge there is a cicatrix of a single navel. It pos- 

 sesses little sensibility, and is of great strength ; for upon a rope being 

 fastened to it, the twins may be pulled along without occasioning 

 pain ; and when one of them is lifted from the ground, the other will 

 hang by the band alone without sensible inconvenience. For the 

 space of about half an inch from the median line of the band, the 

 sensibility of the skin appears to be common to both. The following 

 experiment was tried upon them by Dr. Roget. A silver tea-spoon 

 being placed on the tongue of one of the twins, and a disk of zinc 

 on the tongue of the other, the moment the two metals were brought 

 into contact, both the boys exclaimed " Sour, sour ;" thus proving 

 that the galvanic influence passed from the one to the other through 

 the connecting band. 



Their strength and activity are very remarkable. They can throw 

 down, with perfect ease, a powerful man. They run with great swift- 

 ness, bend their bodies in all directions, and in their sports often 

 tumble head over heels without the least difficulty or inconvenience. 

 In all the bodily actions in which the concurrence of both is required, 

 such as running, jumping, playing at battledoor and shuttlecock, 

 they exhibit a wonderful consent or agreement without the appear- 

 ance of any previous communication of their intentions. The intel- 

 lectual powers of each are nearly equal, and they have both attained 

 the same degree of proficiency in the games of chess, draughts, and 

 whist. They both possess great powers of imitation. In their re- 

 spective physical constitutions, however, several differences are ob- 

 servable. Chang, as the boy on the left is named, has more vigorous 

 health, and greater regularity of functions, than his brother, whose 

 name is Eng. In general they take their meals and obey the calls 

 of nature at the same time. Asparagus, eaten by either of the twins, 

 communicates its peculiar odour exclusively to the urine of the one 

 wlio has eaten it. 



The author details the circumstances of a catarrhal complaint which 

 attacked both of them in December last, the symptoms and progress 

 of which were similar in both, and from which they both recovered 

 in the same manner and at the same time. In their healthy state 

 their ordinary pulses are generally alike, and are easily excited ; but 

 that of the one may be accelerated, while that of his brother con- 

 tinues calm. 



In their habits they are very cleanly and delicate ; in their dispo- 

 sitions affectionate, and grateful for every kindness shown to them. 



