INDEX 



49; Spawning, 87; Spawning net, 95; 

 Tau'bles' Pond, 39; Temperature, 96. 



Gourami: Dwarf, 118; Purring, 118. 



Guppy (Lebistes), 96. 



Haplochilus: calliurus, 48, 130; cameronen- 

 sis, 129; fasciolatus, 130. 



Haplochromis strigigena, 120. 



Haplomi, Notes on Order, 137. 



Hatchery, Unity Commercial, 79. 



Heat Regulation, 11, 22. 



Heating the Aquarium, 9. 



Heros facetum, 57. 



Hibernation of Fishes, 21. 



Hybridizing Fishes, 66, 134. 



Hydra (Polyp), 13, 62, 64. 



Hyla pickeringii, 103. 



Isoetes, 7. 



Jordanella floridae, 121. 



Kitefish, The, 89. 



Labyrinthine Fishes, Breeding, 117. 



Lace Plant, Madagascar, 37. 



Leach, The, 52. 



Lebistes reticulatus, 96. 



Macropodus: opercularis, 149; species, 117. 



Marsilia, 62. 



Minnow: Fiery-black, 102; Iron-colored, 

 78; Mud. 137; Steel-colored, 78. 



Mosquitoes, Life-history of, 144. 



Mouth-breeder, Cichlid. 120. 



Mud Minnows, With Notes on the Order 

 Haplomi, 137. (Describes a new sub- 

 species of Umbra pygmaea.) 



Mussels, Freshwater, 17, 149. 



Newt: Common, 45, 127; Japanese Red- 

 bellied. 1. 



Nitella: flexilis, 100; gracilis, 100, 112. 



Notropis and Fundulus, Notes on, 67. 



Notropis: chalybaeus, 78; hudsonius amarus, 

 68; pyrrhomelas, 102. 



Osphromenus: species, 117; striatus. 118. 



Ouvirandra fenestralis, 37. 



Pantodon buchholzi, 112. 



Panzerwel, 73. 



Paradise Fish, 60, 117, 149. 



Paramecium, 51. 



Plants, Aquarium, 7, 13, 23, 25, 30, 37. 59. 



60, 61, 81, 88, 99, 142, 159. 

 Polycentrus schomburgki, 157. 

 Pseudocorynopoma doriae, 89. 

 Pterophyllum scalare, 163. 

 Puffer Fish, 69. 

 Pyrrhulina filamentosa, 33. 

 Quillwort in Aquaria, 7. 

 Rana oesopus, 153. 



Respiration of Fishes, 70; Physics of, 115. 

 Rhodeus amarus, 15. 

 Riccia fluitans, 117, 142. 



Sagittaria: natans, 83; sinensis, 100; species, 

 13. 



Salamander: Food for, 100; Gray, 127, 128; 

 Mythology of, 128; Notes on the, 127: 

 Opaque, 113; Purple, 128. 



Schlammbeisser, 86. 



Shark, The Nurse, 25. 



Snails: African, 148; Ampullaria, 88; Bubble- 

 shell, 13; Copenhagen Red, 13, 148; 

 Coral, 13, 148; Eared, 148; Four-horned, 

 88; Japanese, 13, 148; Lymnaea auricu- 

 laria, 149; Lymnaea stagnalis, 149; 

 Niagara, 148; Paludina contecta, 149; 

 Physa heterostropha, 13; Planorbis 

 corneus rubra, 148; Planorbis trivolvis, 

 148; Potomac, 148; Ramshorn, 148; Red, 

 13, 148; Viviparus malleatus, 148. 



Soy Lees, 28. 



Spring Peeper, 103. 



Sunfish, Black-banded, 85. 



Swordtails, Mexican, 97. 



Tadpoles, A-^alue of, in Aquaria, 14. 



Thermostat, Aquarium, 11. 



Trichogaster: lalius, 118; species, 117. 



Umbra: limi, 138; pygmaea bilineata, 147; 

 umbra, 139. 



Unio complanatus, 17. 



Vallisneria: Cells of, 26; Cultivation of, 

 159; spiralis, 25; Tortuous Form of, 159. 



Water Hyacinths a Pest, 2. 



Water, Surface layer of, 13. 



Weatherfish or Schlammbeisser, 86. 



Worms, White, 28, 43. 



Xiphophorus species, 97. 



