JOURNAL OF MICROSCOPICAL SCIENCE. 



DESCRIPTION OF PLATE XIII, 



Illustrating the Rev. J. B. Dennis's paper on the Miorosco- 

 pical Characters of so-called Cetacean Bones of the Red 

 Crag.^ 



Fig. 



1. — Crag fossil from detrital bed, Red Crag. 



2. — Drift elephant. 



3. — a. Tree lacunse of Crag fossil, detrital bed, Red Crag. 



b. Free lacuna} of Drift elephant. 

 4. — a. Haversian lacunse of Crag fossil, detrital bed, Red Cra? 



h. Haversian lacunai of Drift elephant. 

 5. — a. Hippopotamus. 



h. Rhinoceros. 

 6. — Crag fossil, detrital bed. Red Crag. 

 7. — a. Crag fossil, detrital bed, Red Crag. 



b. Eossil elephant from Himalayan mountains. 

 8. — Jaw of Greenland whale. 

 9. — Vertebra of fossil whale. 

 10. — a. Free lacunse of Greenland whale. 



b. Free lacunse of fossil whale. 

 11. — a. Haversian lacunse of Greenland whale. 



b. Haversian lacunse of fossil whale. 

 12. — a. Free lacuna; of recent elephant. 



b. Haversian lacuna; of recent elephant. 

 13.— Crag fossil from detrital bed. Red Crag. 

 14. — a. Elephant from Suffolk Gravel. 



b. Decomposed recent cetacean bone. 



* Figs. 3, 4, 5, 10, 11, 12, arc magnified 300 diameters, the remainder 

 50 diameters. 



