156 JOURNAL OF THE [july, 



13. Circulation of Blood in the Tail of a Newt : by F. W. 

 Devoe. 



14. Bugula avicularia, a marine Polyzoan : by A. S. Brown. 



15. Foot of the Water-Beetle, Dytiscus niarginalis : by A. H. 

 Sleigh. 



16. Radula of the Conch, Sycotypus canaliculatus, Gill : by 

 J. L. Zabriskie. 



17. Insects in fossil Gum Copal, from Zanzibar, Africa : by 

 George E. Ashby. 



18. Hair of a Mouse : by Wilson Macdonald. 



19. Lace-Bark, from the Lace-Bark Tree, Lagetta linearia : 

 by Edwin B. Grove. 



20. Living Desmids : by Edgar J. Wright. 



21. Seeds of Portulaca : by W. R. Mitchell. 



22. Spore-cases and Spores of the Fern, Anemia Mexicana : 

 by Henry M. Dickinson. 



23. Polycystina, from Barbadoes : by Henry M. Dickinson. 



24. Mouth-parts of a Mosquito : by F. W. Leggett. 



25. Cilia of a Mussel : by J. D. Hyatt. 



26. Portion of wing of the Blue Butterfly, Morpho Menelaus : 

 by Charles S. Shultz. 



27. Brownian Movement : by Charles F. Cox. 



28. " File " of Katydid, Platyphyllum concavuni, Harris : by 

 Benjamin Braman. 



29. A piece of the Skin of a Dog- Fish, Acanthias : by Wal- 

 ter H. Mead. 



30. Circulation of Blood in the Frog : by J. L. Wall. 



31. Leaf of the Deutzia scabra : by W. E. Damon. 



32. Bouquet, formed of Scales from the Wings of Butterflies : 

 by C. W. Brown. 



33. Transverse section of the Thistle, Carduus : by F. Col- 

 lingwood, 



34. Leucite, in lava from Vesuvius, Italy : by A. Woodward. 



35. Crystals of Silver : by M. M. LeBrun. 



36. Transverse section of Hair, from an Elephant : by Hor- 

 ace W. Calef. 



37. Diatoms. Type-Plate of 183 forms, from Xh^ Holothuridea 

 of Java : by E. A. Schultze. 



38. Diatoms. Type-Plate of 195 forms, from the Holothuridea 

 of Sumatra : by E. A. Schultze. 



