LIST OF ILLUSTRATIONS. X7 



HATCHING SPANISH MACKEREL.* 



WOOD. 



Page. 

 Fig. 1. — Apparatus for hatchinK Spanish mackerel 1001 



KITE. 



Fig. 1. — Aquarium for hatching Spanish mackerel 1096 



2. — Apparatus proposed for hatcbfcig floating eggs 1098 



FISH PONDS, t 



Platk I 1132 



Fig. 1. — Valley, to he transformed into ponds hy means of dikes. 

 2. — Staking out the dike. 

 3. — Position of the pieces of sod. 



Plate U. 1132 



Fig. 4. — Section of dike. 



■ 5. — Fish-pit and ditches. 



6. — Protection posts against thieves. 



Plate III , 1132 



Fig. 7.— Sluice. 



8.— Tap-outflow. 

 9. — The tap-house. 



Plate IV 1132 



Fig. 10. — Section of a "monk." ' 



11. — Perspective view of a "monk." 



12. — Transverse section of the perpendicular pipe of a narrow "monk." 



13. — Transverse section of the perpendicular pipe of a hroad "monk. " 



Plate V 1132 



Fig. 14. — Dike with weir, grating, and floating heam. 

 15.— Weil-. 

 16. — Angular grate. 

 17. — Portable net for carrying carp. 



CETACEANS, t 



Fig. 1.— Showing the organs and regions of the body to which special names are applied 1168 



2. — Pelvic bone of a por[)oi.se, natural size 1169 



3. — Ideal fitrnre of a porpoise, showing by cross-lines at what points the hones of the 



skeleton may be most conveniently sepai ated . 1170 



4. — View of the under side of the skull of a whale, showing the position of A A, the ear- 

 bones; B B, tlie cheek-bones 1171 



5. — View of the upper side of the skull of a whale, showing the position of A A, the 



nose-bones 1171 



Plate I 1180 



Fig. 1. — Platanistd gangetica. The Susu. 

 2.— Inia Geofi"ro.vi. Thelnia. 

 3. — Pontoporia Blainvillei. The Pontoporia. 



Plate II 1180 



Fin. 4. — Sotalia fluviiitilis. River Dolphin. 



5. — Stenoperspicillatus. Long-beaked Dolphin. 

 0. — Tursiops tursio. Common Bottle-nose Dolphin. 



Plate III 1180 



Fig. 7. — Delphinus delphis. Common Dolphin. 



8. — Prodelphinus punctatus. Spotted Dolphin. 



9. — Leucorhamphus borealis. Right-whale Porpoise. 



PlateIV 1180 



Fifs. 10.— Lagenorhynchus gubernator. Striped Dolphiu. 



11. — Cephalorhynchus IJcavisidei. White-iuarked Porpoise. 

 12 — Phooa:na communis. Common Harbor Porpoise. 



* In Wood's and Kite'.s Spauinli Mackerel Papers. 



♦ In Bt'uecke's Utilizing Water by Fish-Culture. 



; In Truf's Suggestions to Light-IIousc K C['Prs ;inrt others, relative to collecting specimens of whslec 

 and porpoisus 



