THE MICROSCOPE. 205 



• To-morrow night I'll here await 

 Your swift return; then we'll relate 



Our day of joy or sorrow." 

 Their plans complete, their eyes they closed, 

 And on the window-sill reposed, 



Impatient for the morrow. 



Alas, poor flies! they hoped in vain; 

 They parted ne'er to meet again. 



Recounting days of pleasure; 

 Instead of milk to quench its thirst. 

 Of chalky i7iixturc drank the first 



From out the milkman's measure. 



The sugar-bowl, for number two 

 Proved, sad to tell, disast'rous too — 



Well may poor mortals tremble! 

 Rich marble-dust and silver-sand, 

 Sent this poor fly into that land 



Where flies alone assemble. 



The third, intent on suicide, 



A dish of poison near him spied. 



And drank the fatal potion. 

 But stay, your tears ye need not shed! 

 Adulterated poison — fed 



And proved a soothing lotion. 



— Our Continent. 



Structure and Movement of Protoplasm. — G. Klebs gives 

 in the Biol. Centralbl. a summary of the present state of our knowl- 

 edge respecting the structure of protoplasm and the movements to 

 which it is subjected and the connection between these two. He 

 sums up by saying that, while we are still ignorant of the chemical 

 composition of protoplasm and of the mechanical forces which lie 

 at the base of its mobility, it becomes more and more evident that 

 the life of all living organisms depends on the vitality of this one 

 and the same substance. — Roy. Mic. Jour. 



