XXIV INTRODUCTION. 



in New Jersey is it the same ? We answer, because serpentine 

 (which is necessary to form chrysotile, and this to form the 

 ' ' tubuli " of the ' ' proper wall ") is not present. And, next, how 

 is it to be explained that the loganitic " Eozoon " only consists 

 of " chambers" and " skeleton," and thus simulates the cal- 

 careo-amphibolic gneisses of Norway and other places ? In a 

 Supplement we notify the occurrence of a specimen of typical 

 ' ' canal system " in the chinks of a large crystal of spinel 

 imbedded in hemithrene from New Jersey. 



1870. On Laurentian Rocks in Eastern Massachusetts. Dr. T. Sterry 

 Hunt. American Journal of Science, 2nd ser. vol. xlix, 

 pp. 75-78. 



Notices the discovery, near Chelmsford, by "Mr. L. S, Bur- 

 bank, of Lowell, a zealous and successful teacher of geology 

 and mineralogy," of " a mixture of limestone and yellowish- 

 green serpentine," rich in "Eozoon Canadense" the " cylindrical 

 diverging branching tubuli" of which are "injected" with 

 " pure carbonate of lime." On seeing this note we immediately 

 wrote to Mr. Burbank, begging of him to supply us with speci- 

 mens of the kind. Some time after we received his answer, with 

 specimens. In the beginning he informed us that he had totally 

 changed his views as to the nature and " origin of the presumed 

 fossil," and with respect to " the statement by Dr. Hunt that 

 the tubuli are injected with carbonate of lime, it is incorrect/' 

 &c. On testing with hydrochloric acid the specimens ourselves, 

 we found none of the " tubuli " had been affected. 



1870. Note on Eozoon Canadense. [In reply to Professors King and 

 Rowney.] Dr. J. W. Dawson, Proc. Roy. Irish Acad. 

 ser. 2, vol. i. pp. 117-123. 



We are credited with having introduced some " new features" 

 into the discussion, most of which are met in the style of argu- 

 mentation peculiar to eozoonism. One of the new features is 

 the "remarkable case" of a spinel from Amity, New York, 

 containing in crevices calcite, which encloses perfect "canal 



