56 JOURNAL OF THE [April, 



8. A MICROSCOPIC ENGKA VI NG. 



Exhibited by C. Van Brunt. 

 (). SPI,V/VERE7\ OR SPINNING ORGAN OE THE SPIDER. 



Exhibited by C. Van Brunt. 



10. CRYSTALS OF IIORSFORD'S ACID PHOSPHATES ; 



SHOWN BY POLARIZED LIGHT. 

 Exhibited by C. Van Brunt. 



11. CILIA OF THE OYSTER. 



Exhibited by F. W. Devoe. 



12. YOUNG SALMON {just hatched). 



Exhibited liy F. W. Devoe. 



13. HUMAN BLOOD, 



Exhibited by F. W. Devoe. 



1 4 . FERN- LEA F GOLD CR YS TA L S. 



Exhibited by G. S. WooLMAN. 



1 5. PLA TINO- C YA NIDE OF MA GNESI UM. 



Exhibited by G. S. WoOLMAN. 



16. SEEDS OF OR T/IOCAR PUS PURPURA SCENS. 



Exhibited by Ci. S. Woolman. 



17. CRYSTALS OF STEEL IN A Sl^EEL CASTING. 



Exhibited by P. H. DUDLEY. 

 18 ETCHED SURFACE OF A STEEL CASTING. 



Exhibited Iiy P. H. Dudley. 

 1 DIA MOND- BEE TL E. 



Exhibited by M. H. Eisner. 



20. EMBRYO CHICK (fourth day). 



Exhibited by M. H. Eisner. 



21. SPIRACLES. 



Exhibited by ¥. W. Leggett. 



22. CRYSTALS OF CINNABAR. 



Exhibited by ]. A. Chambers. 



23. VOLCANIC GLASS, FRO 31 DAKOTA. 



Exhibited by E. B. Grove. 



24. BACILLUS TUBERCULOSES. 



Exhibited by L. SchOnev. M. D. 



25. ARRANGED DIA TOMS. 



Exhibited by William Wales 



26. MANGE INSECT {Derma todectes {Sareoptes) equi) FROM A 



HORSE. 



Exhibited by William Wales. 



?7. FOSSIL WOOD FROM ARIZONA, TRANSVERSE SECTION. 

 Exhibited by M. M, Le Bkun, 



