-72- 



-y/ 



Z 



//- 



10. 



Figure 57. 



Figure 58. 

 Figure 59. 



Diagram of polyethylene tube showing the side 

 for insertion of grids through diamond- 

 shaped openings (left). The grids are 

 anchored in the small round holes directly 

 beneath the diamond-shaped holes (right - 

 reverse side of tube). 



Intravenous set used to rinse grids con- 

 tained within polyethylene tube. 

 Two ml pipette pump used to apply stains 

 to grids. 



