THE MICROSCOPE. 73 



ossification. Tliat bone cells are found within ruptured cartilage 

 capsules is a settled fact and here arises the question as to the un- 

 ruptured capsule having within themselves bone cells. I hope that 

 at no late day this question will be settled. I have made a careful 

 study of the subject and have never seen the cells in unruptured 

 capsules. After the bone cells enter the cartilage substance the de- 

 velopment continues as in other tissues of the body. 



The study is an undertaking which requires much hard work, 

 and is accompanied by many failures which necessitate the repe- 

 tition of many parts of the work. One discouraging feature of the 

 work is the fact that no permanent mountings can be made. 



Mr. W. H. Hamlet has recorded the experiments he has made 

 on the power of various substances to destroy bacteria, (the micro- 

 scopic plants which are the most active agents of decay.) Chlorine 

 and hydric peroxide proved fatal to them, while chloroform, creasote, 

 carbolic acid, salicylic acid, etc., hindered their development, but did 

 not destroy them. 



Adulteration of Jellies. — We feel very doubtful whether it 

 is possible to purchase a genuine article of fruit jelly. Every speci- 

 men we have been able to examine has contained gelatine, colored 

 with some common dye-stuff, and sweetened with artificial sugar 

 made from corn by the sulphuric acid process. Those who want a 

 pure article of jelly will have to make their own. 



Axle-Grease Butter Makers. — In Milwaukee, Wis., the war 

 on the axle-grease butter makers of Chicago is being pushed with 

 vigor, and they are being driven to the wall. Some of the testimony 

 given as to how the pomatum is manufactured is interesting, one 

 witness testifying that the receipt for making "best gilt-edge cream- 

 ery" was to take 1,000 pounds of hog products, one hundred and 

 fifty pounds of beef tallow, and twenty-five pounds of genuine but- 

 ter, and mix them up with seasoning to suit the taste. We should 

 say a little guano would about fix it out for a man who was blind 

 drunk. — Milwaukee Sun. 



