ILLUSTEATIONS XV 



FIG. TAGE 



36. Conulites Limestone ; Tertiary ; Egypt 275 



37. The Tow-net in Use 292 



38. Various Forms of Dipping Tubes 294 



39. Stage Aquarium for observing Living Foraminifera . 295 



40. Method of Mounting Foraminifera in Dry Cells . . 309 



41. Method of Mounting a Series of Foraminifera on One 



Slide 310 



42. Harvey's Method of Mounting Opaque Objects . . . 313 



