THE MICROSCOPE. 219 



geons, Chicago, read a paper on " The Detection of Adulterations 

 in Lard," which was in substance as follows: The size and form of 

 crystals depend upon the mother liquor. Stearin and palmitin are 

 of a definite composition, and always of the same form of crystals 

 under the same circumstances; hence it is useless to attempt to de- 

 tect tallow in lard by isolating them. This can be detected by mak- 

 ing a direct examination of the substance. 



His method is to put a portion of the lard on the slide and cov- 

 ering it with a cover-glass; then warming it just enough to spread it 

 — not to melt the stearin — using about 100 diameters and. the dark 

 background of the polarizer. 



By studying the general pattern of the slide as well as the in- 

 dividual masses of crystals we shall see that one per cent, of tallow 

 mixed with pure lard gives a different combination of crystals from 

 pure lard. 



Pure lard, pure lard with one per cent, tallow, pure lard with 

 two per cent, tallow, lard found in the market, tallow and cotton 

 seed oil, and adipose tissue were exhibited. 



William Hoskins, Sec'y. 



Chronic Lassitude. — There are certain characteristics con- 

 nected with a lazy man which are admirable. They excite in the 

 twanging, jingling breasts of the nervously fidgety a feeling which 

 borders on respect and is akin to awe. Your double geared 

 fidgety man will spin all day like a top and run down in the cool of 

 the evening on the identical spot on which he started off after 

 breakfast. The man suffering from chronic lassitude will keep 

 still, keep cool, keep in the shade, put in a full day's work rest- 

 ing himself, and arrive on time at sun down, cool, calm, and 

 collected, without having once sweat under the collar or laid a 

 hair. 



The professional lazy men seems to eat, drink, and sleep 

 with as much gusto and sang froid as his fidgety brother with 

 the high pressure anatomy and patent double cylinder, fast, per- 

 fecting, hygienic apparatus, who gets hot in the box, and wears 

 and grinds and cuts his life away like a piece of misfit machinery. 

 The fact of the business is, the man of bustle wears his life 

 away for the want of the oil of rest. The lazy man just soaks 

 along like a handful of cotton waste in the oil cup of a box car 

 axle. 



