nliniKil J it, ill /»<»;/'• :i 11/ (tivrr.) 



VOLUME 43. 



1 M..i.-r. II. W. Btudlea en Fluorite: (IV 1 1 Kai hod ■■ Luminescence of Fluorite. pp. 1 16 



l pi. June, r.>07. 85c, 

 j. QunuiMAH, J H I New 8) MOtBmecionn&i niton from Mexico; (II ) Rosissos, 



it i. New or otherwise Noteworthy Bpermatophytea, chiefly from Maxloo ; ill i 



!.. i... and Babtutt, H H New Plants from Qsntemala and Mexico collected 



chiefly bj C. 0, Deam; [V. F. \w.i., M L. — Diagnoses (d Sew B - from 



tfow Mexico pp 17-68. June, 1907. 

 . i: i. , and OopklIitd, m. — Matnration Stages in Um Bpen -is of VeBpa M 



btta Linn pp. 69-74, June, I'.HIT. 16c. 

 •». Bra., L. — The i ol Illumination, pp. 76-86. September, 1907 80c, 



r>. I'KiKt k. B. i). on the D t. rmination ol the Magnetic Behavior "f the Pinelj Divided Core of 



an Electromagnet while a Steady Current i« being BstabUahad In the Exciting CoiL pp. 



•.'7 182. Bi ptember, 1907. II 20. 

 6. Siifi'hCMAOKN, L. B. — The Demagnetizing Factors lor Cylindrical Iron Bods. pp. 183 



September, 1907. 81.15. 



