n6 brown: the sundial and thk clock. 



noon mark, and far finer, laid down on a bit of cardboard with 

 an upright pin for gnomon in a south window of her house. 



There is a dial on the front of San Lorenzo in Florence 

 which I used to pore over hopelessly. A vertical dial in 

 marble and bronze. 



Rather sombre is the effect of the stony silence in which 

 many useful and essential facts of the universe are proclaimed 

 by this just and emotionless monitor. 



I wish I were a poet to say something worth hearing about 

 harnessing a shadow. 



I chose to write in lettered brass upon the pillar of our 

 dial, where it stood before, the grim words of the high-hearted 

 HOTSPUR : 



" (), gentlemen, the time of life is short ! 



To spend that shortness liasely were too long 



If Hfe (lid ride upon a dial's point 



Still ending with the arrival of an hour ! " 



THE NATURE OF DIATOM MOTION. 



KV T. CHALKLEV PALMP:R. 



The reality of motile phenomena in the case of diatoms 

 would seem to be almost the otil}' point in the whole case 

 whereon biologists are in agreement. Diatoms do move — so 

 much is conceded. This is something, and we may well put 

 it down with thankfulness as not a subject of controversy. 

 Differences in plenty remain. 



When a diatom, or a desmid, or any other small organism 

 is seen to pass from point to point in a drop of water under 

 the microscope, at least two questions suggest themselves to 

 the mind of the observer. 



First, Is the organism moving spontancotisly and as if with 

 a purpose, or is it passive in the grasp of " the environment ? " 



Second, What is the mechanism throttgh the action of 

 which the motion is accomplished ? 



