IIVIJUIDISATION. H7 



species, now distinct, hiivc nrisiMi, and wlictlicr in trntli tlicy 

 arc distinct or no. 



Now, it is of conrsi" just tis lasy to conuuiiigU', in tlu' manner 

 heretofore describril, tin- milt and roc of two distinct varieties, 

 as of the same sjwcics ; and thi- conscci'icnci's of snch an achiiix- 

 ture wonld cxcitf the attention of tin- \\hoh' scitMit ilic world. 



Anywhere in the northnn and north-eastern part of the 

 State of New York, anywhere in the northern parts of New 

 Ilanipslnrc, \'ermont, or Maine, it wonhl be the easiest thinir 

 in tljc workl to procure the common Lake Trout {>:>atiuo Cu/i- 

 (iniji), if not alive, at least witian a few hours after his cai)ture, 

 and the connnon Brook Trout, dead or alive, in any desirable 

 quantities. 



There is little if any difVerence in the spawning period of 

 these two Salinon'uUe, so that it would require very little pains 

 ur attention to procure the males and females under the eircinn- 

 stnuces proper for tlie making of such an experiment, whieh 

 might be performed precisely as I have described it above ; 

 trying, in ditlerent instances, the males and fenndes of the two 

 species alternately. 



There are thousantls and tens of thousands of little ttnnliHng 

 transparent rills, throughout that country — scarcely a farm 

 without a dozen such — which have numerous natural basins in 

 their courses, each of which, with the aid of a few hours' work 

 employed in raising a timber dam, ami applying a grate at the 

 entrance and egress of the stream, would constitute as perfect a 

 i»torc-i>ond for the making of such experiments as could be 

 erected by the wealth of Crccsus ; with the atlvantage, too, of 

 having the fish rcqutititc for the tests existing, in a state of 



