l386.J NEW-YORK MICROSCOPICAL SOCIETY. 47 



science has the explorer trustier maps and charts for his guid- 

 ance than in the wonderfully fascinating portion, entrance to 

 which must be made through the microscope. 



" If there be persons who only pursue their studies under the 

 stimulus of possible gain or good to themselves or to their fel- 

 lows, surely, microscopical work offers to even such opportuni- 

 ties innumerable, embracing, as it does, almost every conceiv- 

 able subject of a physical nature which can possibly interest 

 man — from the etiology of disease to the constituents of the 

 spheres. 



" Let us, then, continue our investigations with additional 

 energy. Let us bring their results here. In the hope that our 

 meetings during the year upon which we now enter will be 

 signalized by interesting and valuable work, I assume the trusts 

 which you have imposed upon me." 



The following objects were exhibited r^ 



1. Globules of Copper ejected from a Siberian Volcano : by 

 H. W. Calef. 



2. Polyporus pinicola^ Fx., showing reactions of Phosphoric 

 Acid : by P. H. Dudley. 



3. Arranged Diatoms (one hundred and three species from 

 the Pernambuco deposit); mounted by C. H. Kain, Camden, N. 

 J.: by E. A. Schultze. 



4. Jasperized Wood from Arizona, showing fibrous structure : 

 by L. Schoney. 



5. Rubus occidentalis ; transverse section, shown by polarized 

 light : by W. G. De Witt. 



6. Shell of Difflugia corona ; shown by polarized light: by W. 

 G. De Witt. 



7. Crystals of Potassium Carbonate, shown by polarized light: 

 by B. Braman. 



8. Volvox globator : by A. D. Balen. 



geological period of the jasperized wood from ARIZONA. 



Dr. L. Schoney said : " I obtained my specimen of jasperized 

 wood from the Jasperized Wood Company. It was mounted 

 in Canada balsam by Mr. Lowden, of Poughkeepsie. The speci- 

 men shows, in its transparent spots, the characteristic markings 

 of Araucaria — most probably of the species Cun^iinghami — with 

 the dots in alternate rows. This group of trees is represented 



