CONTENTS 
PREFACE 
Section I.—On the Larve of Insects.......... a 
Cuap. I.—On the Larva of the Dyticus, or Crocodile .. 
Cuap. II.—On the Larva of a small Gnat, or Tipula, 
hitherto undescribed . eee 
Cuap. I1J.—On the Larva and atl of the Libellula, or 
CE Re crore Ge a Al vid psa ae oa no a 
Cuap. IV.—On the Larva of a small Notonacta, or Boat 
Section IJ.—On Animalcules, or Infusoria ........ 
Cuap. V.—On Animalcules, or Eels in Paste 
Cuap. VI.—On the Wheel Animalcule .............. 
Cuap. VII.—On the Green and Brown Polype........ 
Cuap. VIII.—On the Lurco, or Glutton ............ 
Beer AN TNE SALVE 6 2 oo os san ws aie ees ois ess 
Cuap. X.—On the Round Lynceus .......... sat 
Cuap. XI.—On the Four-horned Cyclops, or small Water 
Flea.. Ae ES Re 
Cuap. XII.—On the small en or Vaulter. . 
Cuap. XIII.—On a small Fresh-water ae Abs: 
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