189I.] NEW-YORK MICROSCOPICAL SOCIETY. 133 



2. From a rejected heat of rails. The ingot was maintained 

 at too high a heat in the reheating furnace. Coarse crystals re- 

 sulted in the head of the rail. In the fracture the crystals have 

 separated from each otherwithoutbreakingtheindividual crystals. 



3. From the same rail as No. 2, taken near the top of the head. 

 The specimen shows the effect of the mechanical treatment of 

 rolling, which has broken the coarser crystallization, rendering 

 it of very fine texture — practically amorphous. 



4. From a fine-grained large rail having a tensile strength of 

 120,000 to 130,000 in the head, the elastic limits ranging from 

 60,000 to 55,000 pounds. The specimen contains Sof/c of carbon,, 

 the phosphorus being down to or under .06, 



5. The end of a tensile specimen of 53,470 pounds elastic limit 

 and 23,^^ of elongation. The fracture is fine and silky, showing 

 that it was a tough piece of metal. This steel has been worked 

 to a fine texture. 



6. From the side of No. 5, showing on the exterior a tendency 

 to separation on the surface of the original large crystals as soon 

 as the steel has passed the elastic limits. 



7. Section of ovary of Poppy : by Charles S. Shultz. 



8. Section of English Mistletoe, double stained : by Charles 

 S. Shultz. 



9. Section of scalariform ducts in Tree-fern : by Charles S. 

 Shultz. 



10. Native gold crystals from Catawba Co., North Carolina i 

 by George E. Ashby. 



11. Malachite from Arizona: by George E. Ashby. 



12. Section of Luxullianite from Cornwall, England : by 

 James Walker. 



13. Head and mouth parts of Neris : by L. Riederer. 



14. Down feather of Canary Bird : by L. Riederer. 



15. Transverse section of bud of Lily, of the thickness of 'one- 

 cell of the structure, double stained, having all parts in situ,. 

 and showing nuclei in all the cells: by Albert Mann, Jr. 



16. Transverse section of the ovipositor of the " Long-Sting 

 Wasp," Thalessa atrata Fab.: by J. L. Zabriskie. 



17. A specimen of T. atrata, captured in the act of ovipositing,, 

 and having the ovipositing membrane still distended five-eighths- 

 of an inch in diameter by the internal coils of the bases of botli 



