PREPARATION 13 



3. Glass stoppered bottle for distilled water and holding 

 500 cc. 



4. Glass stoppered bottle holding 100 cc. for staining 

 solution. 



5. Bottle with dropper for carbol-xylol and holding 250 cc. 



6. Stender jar, 60 x 90 mm. for clean slides. 



7. Stender jar, 60 x 35 mm. for clean cover-glasses. 



8. Stender jar, 60 x 90 mm. for burnt matches. 



9. Ointment jar for waste. A large covered jar, preferably 

 one of the colored glass jars sold as ointment jars, about three and 

 one-half inches broad and about six inches high, is needed into 

 which can be drained waste liquids as used caustic potash, water, 

 and alcohol. A quart fruit jar can be used if nothing else is 

 available. 



10. A jar of xylol balsam with a solid glass rod. 



11. Box of safety matches. 



12. Bunsen burner stand with shelf. The best type is that 

 where one of the legs is provided with a shelf which can be raised 

 or lowered and fastened in place with a set screw. 



13. Alcohol lamp. Better results can be obtained by the use 

 of an alcohol lamp than by the use of a gas flame. The alcohol 

 lamp should be of good size so as not to need refilling too frequently. 

 Care should be used not to fill the lamp too full or when it gets 

 hot the alcohol may explode. 



14. Casserole with cover and wooden handle. The best vessel 

 in which to boil coccids is a casserole about three and one-half 

 inches in diameter and holding about four ounces. Any sort of 

 chemical glassware, as beakers or test tubes, can be used, but 

 when considerable heat is applied to caustic potash, causing it to 

 boil vigorously, it is liable to pop out of any vessel with a restricted 

 mouth or neck and to carry the specimens with it. There is no 

 danger from popping-out if a wide-mouthed vessel such as a 

 casserole is used. It will be found that the wooden handle will 

 save burnt fingers and temper. 



15. Syracuse Watch-glasses. The watch-glasses with flat 

 bottoms and grooved so that they can be stacked up are the most 

 convenient receptacles in which to perform many of the operations 

 necessary in the treatment of the specimens, as dehydrating, 

 staining, or clearing. A considerable number, twenty-five or more, 

 will be found useful. Those with the beveled surface ground, upon 

 which the name of the substance or the name or number of the 



