144 PHILOSOPHICAL TRANSACTIONS. [aNNO 166/. 



things as before ? And whether he will do such things better or worse at some 

 time after the operation ? 



3. Whether those dogs that have peculiarities will have them either 

 abolished, or at least much impaired by transfusion of blood ? (As whether the 

 blood of a mastiff, being frequently transfused into a blood-hound or a spaniel, 

 will not prejudice them in point of scent ?) 



4. Whether acquired habits will be destroyed or impaired by this experiment? 

 {As whether a dog taught to fetch and carry, or to dive after ducks, or to set 

 will after frequent and full recruits of the blood of dogs unfit for those exercises 

 be as good at them as before ?) 



5. Whether any considerable change is to be observed in the pulse, urine 

 and other excrements of the recipient animal, by this operation, or the quan- 

 tity of his insensible transpiration ? 



6. Whether the emittent dog being full fed at such a distance of time before 

 the operation, that the mass of blood may be supposed to abound with chyle, 

 the recipient dog being before hungry, will lose his appetite more than if the 

 emittent dog's blood had not been so chylous : and how long, upon a vein opened 

 on a dog, the admitted blood will be found to retain chyle ? 



7. Whether a dog may be kept alive without eating by the frequent injec- 

 tion of the chyle of another, taken freshly from the receptacle, into the veins 

 of the recipient dog ? 



8. Whether a dog, that is sick of some disease chiefly imputable to the mass 

 of blood, may be cured by exchanging it for that of a sound dog ? and whether 

 a sound dog may receive such diseases from the blood of a sick one, as are not 

 otherwise of an infectious nature ? 



g. What will be the operation of frequently stocking (which is feasible 

 enough) an old and feeble dog with the blood of young ones, as to liveliness, 

 dulness, drowsiness, squeamishness, &c. et vice versa f 



10. Whether a small young dog, by being often fresh stocked with the blood 

 of a young dog of a larger kind, will grow bigger than the ordinary size of his 

 own kind? 



1 1 . Whether any medicated liquors may be injected together with the blood 

 into the recipient dog ? and in case they may, whether there will be any consi- 

 derable difference found between the separations made on this occasion, and 

 those which would be made, in case such medicated liquors had been injected 

 with some other vehicle, or alone, or taken in at the mouth ? 



12. Whether a purging medicine being given to the emittent dog a while 

 before the operation, the recipient dog will be thereby purged, and how? 

 ' (which experiment may be greatly varied.) 



