fSgi.] NEW-YORK MICROSCOPICAL SOCIETY. 121 



Instantaneous Photomicrographs: by J. M. Stedman — 



14. Colony of Vorticellidse, from life. 



15. Group of Nais in rapid motion. 

 Foraminifera: by A. Woodward — 



16. Haliphysema Tumanowiczli, Cornwall, Eng. 



17. Faiijasinao carinata, Cornwall, Eng. 



18. Specimens from Chalk, Island of Riigen. 



19. Specimens from all parts of the world, and a selection from 

 the collection of the American Museum of Natural History. 



20-21. Two Slides, mounted by J. W. Bailey about 1845. 



22. Human Flea, Pulex irritans : by Wm. Beutenmuller. 



23. Eye of House Fly, Musca domestica : by Wm. Beuten- 

 muller. 



24. Sting of Honey-Bee, Apis jmllifica : by Wm. Beuten- 

 muller. 



25. Scales of various Species of Butterflies, with a collection 

 of Butterflies and Moths from the American Museum of Natural 

 History: by Wm. Beutenmuller. 



26. Alloy of Gold, Silver, and Copper: by L. P. Gratacap. 



27. Section of Tulip-Tree, Liriodendron tulipifera : by L. P. 

 Gratacap. 



28. Crystals of Sulphate of Copper: by Alfred Beuten- 

 muller. 



29. Crystals of Bichromate of Potassium: by Alfred Beu- 

 tenmuller. 



30. Crystals of Chlorate of Potassium: by Alfred Beuten- 

 muller. 



31. Vinegar Eels, living: by Alfred Beutenmuller. 



32. Agatized Wood, enclosing Fungus, Arizona: by Thos. B, 

 Briggs. 



T,l. Basalt with Olivine: by Thos. B. Briggs. 



34. Oligoclase, New York City: by Thos. B. Briggs. 



35. Hornblende, New York City: by Thos. B. Briggs. 



36. Foot of Fly: by Thos. B. Briggs. 



37. Section of Pebble from Chagres River, Panama: by Thos. 

 B. Briggs. 



38. Sections of Epidosyte, Fibrous Hornblende, Tourmaline, 

 Oligoclase, Mica-schist, and Mica, shown with automatic revolv- 

 ing stage: by James Walker. 



