FEOG 259 



fibres. Compare with the white. Look also 

 for connective-tissue corpuscles. 

 2. Areolar tissue. — Without stretching it, lay in 

 a drop of water on a slide a portion of the thin, 

 web-like tissue which connects many of the ad- 

 jacent muscles, or, in places, attaches the skin 

 to the underlying parts. What kinds of con- 

 nective tissue can you find? Stain with ma- 

 genta. Examine another specimen which has 

 been treated with a one-half per cent, solution 

 of silver nitrate for three to five minutes, then 

 washed with distilled water and left exposed to 

 the sun until bro^vn. 



d. Hyaline cartilage. 



Dissect out the xiphisternum, remove its cov- 

 ering membrane, the perichondrium, cut off a 

 piece of the cartilage, and mount in a drop of 

 salt solution. Note the arrangement of the car- 

 tilage corpuscles embedded singly or in groups 

 in the matrix. Look for nuclei, particularly 

 such as show by their elongation, etc., that they 

 are in the process of division. Wash the speci- 

 men in water, stain with an aqueous solution of 

 hsematoxylin, and examine in glycerine. 



e. Adipose tissue. 



Cut off a portion of a fat body, tease it in a 

 drop of salt solution, and study the structure of 

 the tissue, which consists mainly of connective 

 tissue and fat cells. Treat with chloroform. 



f. Muscular tissue. 



1. Unstriated muscle. — Eemove a portion of the 

 outer layer of the intestine and tease it in a drop 

 of salt solution. Look for long, spindle-shape 



