VOL. L.] PHILOSOPHICAL TRANSACTIONS. ^ 145 



because the urinary and foecal vessels and passages were so united, as to have but 

 one issue for the urine, and another for the excrements, betwixt both. They 

 were brisk, merry, and well-bred ; they could read, write, and sing very pret- 

 tily : they could speak 3 different languages, as Hungarian, High Dutch, [Ger- 

 man] and French, and' were learning English. They were very handsome, 

 very well shaped in all parts, with beautiful faces. Helen was born 3 hours before 

 her sister Judith. When one stooped, she lifted the other from the ground, 

 and carried the other upon her back ; neither could they walk side by side. They 

 loved one another very tenderly. Their clothes were fine and neat. They 

 had 2 bodies, 4 sleeves, and ] petticoat served both bodies, and their shifts the 

 same. When one went forward, the other was forced to go backward." 



A later and more particular account is contained in p. 41, & seqq. of a book 

 very seldom met with in this country, being printed at Vienna in 172-9, intituled, 

 Gerardi Cornelii Drieschii Historia magnae Legationis Caesareae, quam Caroli 

 VI. auspiciis suscepit Damianus Hugo Virmondtius, &c. The account given in 

 this book coincides in most respects with the preceding accounts. This author 

 however, states that neither the alvine nor the urinary evacuations were always 

 performed at the same time by both sisters ; that the menstrua happened at dif- 

 ferent times, one having them a week or more after the other ; that when one 

 was asleep the other was often awake ; that one had a desire for food, when the 

 other had not, &c. That between the 2 sisters there was a striking difference, 

 not only as to bodily strength and activity, but also in regard to intellectual powers ; 

 that Helen was of very engaging manners, and excited much interest by showing 

 that she was sensible of her own unfortunate situation and that of her sister ; that 

 although they both tenderly loved and often kissed each other, yet in their early 

 youth they not unfrequently quaiTelled and fought in consequence of their de- 

 sires for the alvine and urinary evacuation coming on at different times ; that 

 during their travels, they had learned various foreign languages, some of which 

 they had forgotten, but that at the time this account was written, they could 

 still speak German, French, and Hungarian ; that after they were placed in the 

 convent at Presburgh, they were taught to read and write, instructed in religion, 

 and employed in needle work, the manufacture of lace, &c. 



XL. Observations on the Origin and Use of the Lymphatic Vessels of Animals : 

 being an Extract from the Gulslonian Lectures, read before the Coll. of Phy- 

 sicians of London, By Mark Akenside,* M. D. Fell, of the Coll. of Phy- 

 sicians, and F. R. S. p. 322. 



It is proved, by a multitude of experiments, that the lymphatics communicate 

 with the blood-vessels. They may be distended by blowing air, or by injecting 

 water or mercury, into an artery : and the lymph, which they carry, is frequently 



* This ingenious poet and physician was a native of Newcastle upon Tyiie, where he was born in 

 1721, and where he received his grammatical education. His father, who was a butcher of the 

 VOL. XI. U 



