Journal of Applied Microscopy. 



129 



Fig-. 14. Waste bowl with rack and drain- Fig. 15. Capped holder for Balsam and 



age funnel (see also Fig. 3). homogeneous oil with glass rod. 



Fig. 16. Simple moist chamber. 



In handling amphibian eggs and other 

 small and delicate objects an egg pipette 

 may be easily made by cutting off a 

 short medicine dropper and adding to 

 the tip some soft rubber tubing. It is 

 easy with this to catch and handle 

 young embryos of frogs, salamanders, 

 etc. 



Objects fixed with osmic acid alone 

 or in combination with chromic acid or 

 platinic chlorid (Flemming's or Her- 

 mann's solutions, etc.), require to be 

 washed out a long time in running wa- 

 ter. To accomplish this washing without 

 danger to the tissue and still thorough- 

 ly, the following arrangement was de- 

 vised: A small side tap was put in the 

 pipe leading- to the ordinary faucet. A 

 copper box with a small tube near the 

 bottom was put at one corner and this 

 was connected with the washing tap by 

 a rubber tube. A skeleton box with pro- 

 jecting edge was then made to fit inside 



W '"4 



Fig. 17. Egg-pipette. 



