344 ANIMAL REPRODUCTIONS. 
‘ration; if this experiment, made with all the 
* precautions I have taken, and. which I believe 
‘ it effential to ufe, fucceeds' in your hands, and 
© with the Abbé Spallanzani, I fhall efteem it a 
* fact, that the parts entirely feparated are repro- 
© duced in thefe animals. But, beware,would yow 
* defire to: make fuch contradictory. experiments, 
¢ though without them you. cannot be certain of 
‘ the real reproduction of a jaw, an eye, or 2 
“head. I abridge the fubjeét, becaufe the con- 
* fequences that may be deduced are in my let- 
‘ter 30 July 1769, which I thank you for hav- 
‘ing reminded me of in your treatifes.. 
‘ Let us proceed to newts. I have yet’ been 
“unable to perufe your Memoir; but, excepting 
* the tail, to judge by my obfervations on that 
‘of lizards, it feems incapable of reproduc- 
“ing the offeous vertebre; and although I 
* have only had reproductions of ftumps of the 
< feet cut off feveral fpecies of thefe animals and 
‘of frogs, from not being able to profecute 
“my experiments with fuch conveniency, or 
‘fo long on them as on {nails, I moft firm- 
* ly believe the poffibility of the reproduction of 
* the toes and their bones, when. the anterior or 
* pofterior part of the arm is not amputated.’ 
I want words to exprefs all the aftonifhment 
which this letter from my learned correfpondent 
excited ; and I doubt not that the reader will be 
equally 
