VOL. XV.J PHILOSOPHICAL TRANSACTIONS. 205 



which I had taken out of the womb of the female. In the said bodies, there 

 oftiines appeared 6 bright risings of a globular form, placed after the manner 

 they are here drawn, but the bright rising or globule nearest the tail was 

 generally larger than the rest, as it is represented at C. Though some of the 

 bodies were without these globules, yet I could sometimes perceive that at the 

 tail. C D is the tail lying in bends, as it usually is when the animal swims. 



In any of the several seeds which I have observed, I cannot say that the 

 animals are ever at rest, as long as there is any fluid matter left to move in ; 

 but their motion is continual, till it decreases gradually as they come to die. 

 There are some animals which have also a small globular substance in the tail, 

 but it is not to be discovered without great attention. 



In fig. 11, EFG is the body of an animal, having only one globule at the 

 tail, and another in the tail. G H is the tail of the animal. 



I have said that the male seed of the rabbit was in the beginning of the 

 horns, but not throughout, as in bitches; that I might be sure of this obser- 

 vation, I let a female rabbit take buck twice in half an hour's time, and then 

 let her live 6 hours after, at which time I killed her, in the presence of a phy- 

 sician, who had been a companion of De Graaf in his dissections of rabbits. 

 When I had taken out the womb, with the appertenances, I opened one of the 

 horns in 3 several places, at the beginning, in the middle, and at the farther 

 end; and took out of each place some of the matter, which I showed him in a 

 microscope, satisfying him, that the living animals of seed were throughout 

 the horns, and did not only move, but discover the distinct motion of their 

 tail. 



I showed him likewise the supposed ovarium, in which were no red spots, 

 but a great many water bladders as large as a pin's head. I likewise showed 

 him the matter contained in the water bladders, which was nothing but a tran- 

 parent moisture mixed with some bood globules. The other horn of the womb 

 being not then opened, I laid it in a box on a moist paper for l6 hours, and 

 then I found in it a great many living animals. But in one place there were 

 25 dead, for one alive ; and in another place 100 dead, for one alive. After 6 

 hours more, I looked again, but then the animals were all dead. 



I again put a rabbit to buck, and after 1 full days killed her, searching all 

 the horns of the womb, and finding only a few animals, but nothing else re- 

 markable, saving that there were no eggs; some round particles lay here and 

 there, but they were lOOO times less than a sand. I saw likewise some blood 

 vessels in the cornua, which were so small, that a blood globule could not pass 

 through them, without being broke into 64 parts. When I looked on the 

 ovarium with my naked eye, I thought I saw 8 or Q red spots in it, but when 



