ANATOMY OF INVERTEBRATES 141 



The Anatomy of Iirvertehrated Animals shares many of the 

 characteristics of the sister work on Vertebrates, published 

 in 1871, and embodies a large amount of Huxley's own 

 original researches. It does not, however, reach the 

 same high level of excellence. 



One scientific memoir has to be mentioned for 1877 — 

 " The Crocodilian Remains found in the Elgin Sand- 

 stones, with Remarks on the Ichnites \t.e., fossil foot- 

 prints] of Cummingstone " (Mem. Geol. Survey U.K., 

 Monograph III, 1877. Sci. Mem., iv, xiii, p. 188). 

 — This deals chiefly with the remains of the primitive 

 extinct crocodile Stagonolepis {cf. p. 1 27). 



