roh. XX.] PHILOSOPHICAL TRANSACTIONS. 247 



dissected, provided not only a uterus, but also tubes for conveying the ovum from 

 the ovaria to the uterus, there is another great difficulty and objection that lies 

 against Mr. Allen's observations, and in which indeed he seems to contradict 

 himself; it is this : whereas he says, that in one eel he found eggs, and those on 

 the outside of the intestine; but in the other, six young ones, each fastened to 

 a small placenta, and those within the great intestine, called the straight bowel, 

 which adjoins immediately to the pylorus ; how and by what passages those eggs 

 came into the intestine, to be formed and invigorated, unless we may suppose 

 they do like the embryos of some sorts of insects, which for the conveniency 

 of food eat their own way into their heterogeneous or assumed matrices. 



Account of a Book, viz. — The History of Poland, giving an Account of the an- 

 cient arid present State of that Kingdom, Historical, Geographical, Physical, 

 Political, and Ecclesiastical, &c. with several Letters relating to Physic. 

 Fol. I. With a new Map. By Bern. Connor, M. D. F. R. S. Member of the 

 College of Physicians, &c. Loud. \6Q7, 8vo. N° 238, p. 98. 



In this history of Poland, the author gives an account first of its origin; 

 that about the middle of the 6th century it came to be a distinct nation, when 

 , as yet it had no cities, nor money, nor written laws; the first city was then 

 built by Lechus near the state of Brandenburgh, naming it Guesna. Then treat- 

 ing of their policy and princes, which at first were called dukes, he gives a par- 

 ticular history of all their dukes and kings, down to the present king Frederic 

 Augustus, These he divides into 4 classes, the first beginning anno 550, end- 

 ing anno 830, when the government came into the families of Pirstus and 

 Jagello, to the year 1574, when the Jagellonic race ended, which make the 2d 

 and 3d classes. The time of the Teutonic knights' establishment in Prussia ; 

 how the Latin tongue came to be so frequent in use, when the Lutheran reli- 

 gion came to be there propagated ; the jocular common-wealth ofBabina, when 

 and how instituted. The 4th class consists of mixed families, from the year 

 1574 to 1674 ; and here he observes when courts of judicature were first erected, 

 with the original of the Cossacks, and extent of their dominions, their country, 

 character, customs, religion, &c. 



Next he gives a geographical description of Poland, its extent, provinces, 

 towns, products, &c. Next he speaks of the origin and extent of the great 

 duchy of Lithuania, with the description of its towns, and succession of its 

 dukes. In Vilna, the chief city thereof, is a bell, which requires above 24 

 strongmen to ring it, &c. 



At the end of this treatise the doctor gives a compendious plan of the body 

 of physic, or his Corpus Rationale Medicum, being his chemical and anatomical 



