PLATE 13. 



Fig. 1. Rudolphi's Rorqual (Balaenoptera borealis). A photograph of the specimen stranded at 

 Chatham, Mass., in August, 1910. The whale lies on its right side, with back to the observer 

 and though foreshortened, the figure shows in upper view the long and evenly tapering snout, 

 the slit-like blowholes, one of the broad flukes, and (behind the right knee of the farther figure) 

 the high dorsal fin. 



Fig. 2. Little Piked Whale (Balaenoptera acvto-rostrata). A view of the under side of the specimen 

 captured at South Truro, Mass., June 25, 1910. The long throat folds are seen running back 

 half way on the belly. The white band on the pectoral flippers, the white under surface of the 

 flukes, the relative position of the anus and mammary slits are seen. 



Fig. 3. Blue Whale (Balaenoptera musculus) in the act of spouting, seen from behind as the whale 

 breaks water. Photographed by the writer from the deck of the whaling steamer Puma in 

 Placentia Bay, Newfoundland. 



Fig. 4. Common Finback Whale (Balaenoptera physalus) after spouting, showing the body arched as 

 it slowly revolves out of the water and descends below the surface. Photographed by the writer 

 in Placentia Bay, Newfoundland. The whale is progressing from the right to the left hand of 

 the picture. 



Fig. 5. Common Finback Whale about to disappear below the surface and showing the high dorsal 

 fin, which passing forward (to the left) disappears as the body sinks. Photographed by the 

 writer in Placentia Bay, Newfoundland. 



