GIANTS AND PIGMIES. 



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individuals at Arisaig, as they are disinterred, have a very 

 singular appearance. They roll at out feet shaped like bullets 

 or plums. They are mummies around which envelopes have 

 been formed by the concretion of portions of their clayey 

 sepulchres. These require only a gentle tap of the hammer to 

 reveal the lingulu of elegant form, black and pearly, often 

 beautifully iridescent. Their first disclosure never fails to 

 astonish. In the same cemeteries are tiilobites of other genera 

 Phacops and Cahjmene, bright eyed and rolled up like a 

 hedgehog, or diste.aded as overtaken by their last enemy. 

 Associated are beautiful turbinated corals of the order Adinozoa 

 (sea anemone) and species, Petraia forresteri, Salter, and corals 

 and graptolites of the order Hydrozoa (hydra). The last are 

 beautiful and slender saio-like forms which are peculiar to the 

 Lower Silurian period with one or two exceptions, which occur 

 in the Upper Silurian. Prof. James Hall also considers these 

 to be of. Lower Silurian age. Trans, I. N. S. 1886-7. 



We are now ushered into the upper period. Li Nova 

 Scotia, Arisaig and the East River of Pictou are the principal 

 cemeteries of the Upper Silurian inhabitants. The remains 

 disinterred in these localities, but especially the former, show 

 that now was the culmination of the Cephalopods in Nova 

 Scotia as well as of its Silurian life. About 25 years ago I 

 found at Springville, East River, the largest orthoceras yet 

 found in Nova Scotia. This was exhibited at the London 

 Exhibition of 1862, and left there. Although unusually large 

 it was much inferior to the orthoceras of the Trenton lime- 

 stone, and does not take the place of a giant. I have already 

 named the Squid as a representative of this Family. I would 

 now compare the orthoceras with the familiar nautilus. If 

 the one were coiled it would closely resemble the other. At 

 Arisaig the teras (horn) presents a great variety of form. In 

 addition to the plain Orthoceras we have ornate forms, large 

 and small, and Cyrtoceras, Omoceras, Ascoceras and Ammon- 

 oceras. We have also trilobites, Calymene as in the previous 

 period but larger in size, Phacops or Dalmanltes and Homo- 

 lonotue, large and small, young and old, &c., of several species. 



