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A N 
APPENDIX 
To the FORTY-FOURTH VOLUME 
OF THE 
Philofophical TranfaBions, 
Containing fome Papers, which were not 
ready to be inferted in the Order of their 
Date. 
I. Obfervatiom upon fever al fpecies of fmatl 
'water infeSls of the Polypus kind, communi- 
cated in a letter to the Prefident, from Mr. 
Abraham Trembley F. R. S. 
Translated from the French. 
Read May 21, and** HAVE, in a Paper printed in the 
June 18, 1747. 474th Number of the ‘Philofophi- 
cal Tranf actions. Art. X. taken notice of feveral 
fpecies of l'mall water infeds, all which have been 
ranged in the general clafs of the Polypi. It was 
during 
