CONTENTS. 
PAGE 
CHAPTER: V.—-COLBOPTERA..05.. seccces od cneceessee.- 180 
Dytiscus Waceiilis——Hydrous Pasone — Ealymbedes — 
Gyrinus Natator. 
CuapTeR VI.—HETEROPTERA ............... seasuewe Loo 
Hydrometra—Notanecta, Nepa, &c. 
Cuapter VII.—Tur Frogc—Notes on MANAGEMENT.,.. 140 
LIST OF ENGRAVINGS. 
Cabinet Aquarium ...... wis atv Seles on s+ ,cidiniala avn) romtangnece. 
Tank containing Vallisneria Spiralis, Anacharis, Gold Carp, 
apache ANG NAUATOW 5, ccasjcsmemucces auaiey Batts Page 11 
APATITE 2 Fe)s acai sw dipia ts hic'ere toate wae aletatetate Se 15 
BREINER ges Se gle oo aps pips net baer RAG 22 
Stratoides Aloides.... ...... Ppp 1S lity Sls erence a pene ee 24 
a ipperta IMS. ot), us Swe coos ees omens aces 25 
Mamepnyliawt Spicgtymy, 2. \.. cules s ~esina Vas cobs do ale oe 27 
Regtaminwetht: DENSA. os. 6 eos pec ceo vs a emo reas 28 
Ranunculus Aquatalis ............ Bike cus ae Matos ake 30, 
iarciegmis MIOFSOS HANG no ope one ota e's viene, wcities « -. 31 
Tank containing Gudgeon, Prussian Carp, Loach, and Bream 33 
Tank containing Minnow, Tench, and Perch.............. 41 
Tank containing Planorbis Corneus, Paludina Vivipara, 
Lymnea Stagnalis, Unio Pictorum, Tumidus, and Anodon 
ee Btiite ultdtialara albu ciuele ae tie xt 45 
Cleansing Sponge ..........+.. SP Oe on ee eee” 50 
Actinia Mesembryanthemum, Dictyota Dychotoma........ 64 
Porcellana Platycheles, and Cancer Pagurus.............. 72 
Carcinas Menas........ ROM teeter eld i 2 al pe ets -. is 
Actinia Anguicoma, Trochus Ziziphinus, Ulva Latissima, 
Bryopsis Plumosa, Acorn Barnacle .......-.. et (7 a ae 
B 
