Notes, Reviews and Comments. 57 



This contains a general sketch of the history of geological investi- 

 gations, both in Great Britain and America, regarding the base of the 

 fossiliferous series of the lower Cambrian. The views held by Sedg" 

 wick, Murchison, Dr. Hicks, by Barrande in Bohemia by Sir Archibald 

 Geikie are freely quoted whilst in America those of Dana, Logan, 

 Walcott, Selwyn, Ells, Van Hise and others are also cited. Director 

 Rowley's work in Newfoundland is likewise referred to, as well as Dr. 

 Matthew's researches in New Brunswick. 

 Taylor, Frank B. f The Second Lake Algonquin!'' The American 



Geologist, Vol. XV., Nj. 3, pp. 162-179, March, 1895. 



This contains the concluding article by Mr. Taylor on the above 

 subject as elaborated from data obtained in the North Bay and sur- 

 rounding district around Lake Nipissing in Canada. 



"The attitude of the deformed plane;" the order of changes 

 in Niagara and Lake Algonquin, the St. Clair Flats, evidence of recent 

 elevation and tilting in contiguous regions all are elaborately discussed. 

 Mr. Taylor sums up his conclusions regarding the rise and fall of the 

 waters in the straits and lake of Nipissing of Superior and Lake Erie. 

 The suggestive facts mentioned point," naturally, "to a correlation with 

 the eastward uplift which deformed the Nipissing plane with the elevation 

 of the north-eastern barrier of Lake Ontario and of the deposits of the 

 Champlain submergence, in the Champlain, Lower St. Lawrence, and 

 Hudson Bay areas. 

 Girty, Geo. H. Development of the coral htm oj Favosites Forbisi, Var. 



occidentals." The American Geologist, Vol. XV., No. 3, pp. 131- 



146, March, 1895. 



Mr. Girty, who has carried on his researches a-t Yale, under Dr. C. 



E. Beecher, describes five stages in the growth of the corallum of 

 the above species. He carefully describes the interstilial cells or buds 

 which can appear only when divergence of the older corallites permits 

 usually " in the angles where the older corallites meet." 



Favosites spinigeurs, Hall, and F. conicus, Hall, both Silurian co- 

 rals, have also received attention and study for comparison, likewise 



F. hemisphericus. Mr. Girty observes the noticeable fact that the initial 

 corallite in Favosites gives rise to buds which are (1) four in number, 

 and (2) all on one side (dorsal) of the corallum. Favosites present* an 



