New Species of Graptolites from Canada. 147 



material which has been brought to Hght within the last few 

 years. There is perhaps no country in the world which can 

 boast of as many and as well preserved species of grap- 

 tolites, than Canada. Since Hall's magnificent Decade* 

 the discoveries have afforded a great deal of new and 

 interesting material which we hope soon to see put together 

 in accordance with the latest approved classification. 

 Just as the study of graptolites in Great Britain and Sweden by 

 Prot. Lapworth, Fullberg, and others has been found most help- 

 ful in determining zones and horizons in the highly disturbed 

 and problematical regions of those countries, so in Canada the 

 proper understanding of our various zones of graptolites in 

 the Lower St. Lawrence Valley would materially assist in 

 settling the vexing, perplexing, and exceedingly intricate 

 problems in stratigraphical geology. 



NOTES ON THE FRUITING OF SOME TREES AND 



SHRUBS AT THE CENTRAL EXPERIMENTAL 



FARM, OTTAWA, 1896. 



By W. T. Macoun. ■ 



Aesculus flava, Ait. (Sweet Buck-eye). 



One tree of this species has fruited quite freely at the 

 Experimental Farm during the past two years. It is not at all 

 iujured by our winters, although, according to Gray, its range 

 does not extend north of the State of Ohio. 

 Platanus bcciDENTALis, L. (Button-wood). 



Although this tree is not found growing wild anywhere in 

 Canada except in Western Ontario, it is quite hardy at Ottawa 

 One tree fruited last year and again this season. 



yuGLANS Siebildiana, (Maxim. ) Japanese Walnut). 



This tree is perfectly hardy at Ottawa. It resembles the 

 butternut very much in general appearance but the fruit is like 



*Can. Organic Remains, Dec. II., Geol. Survey, Canada, Montreal, 1865, 



