REPORT OF THE DIRECTOR AND STATE GEOLOGIST 1902 r41 



to variation in volume or velocity of the contributing stream; to 

 differences in the amount and coarseness of the detritus; and 

 to varying distance from the lake (or base-level) of the point 

 where the detrital burden was dropped. But, after all the fac- 

 tors producing variations are considered, the student will yet be 

 surprised to find how readily and with what assurance many 

 phenomena can be quite positively correlated. 



Beach or wave-produced features should not be expected in 

 these waters, as the latter were too narrow and insufficiently 

 stable. 



