'.in/it'll from page 8 <•/ C o par. ) 



VOLUME 13. 



> a Fluorita (TV. The Kstbodo-Iamttaaaoflnee of Vlaorite. pp.1 18. 



1 pi 07. 3.V. 



■•[;'■ tuion from : 



B i. N thy Bpermatophytea, chiefly from Mexico ; III., R 



i Babtlbtt, II H .\.-« Plants from Qaatemala and U Uected 



chiefly by 0. (' Doom; >IV.i Kkknii.h, M L. Diagnoses "i Hew Bpermatophytea from 

 N. •« Mexico, pp. 17 -68 June, lix » 7 . 



M. — Maturation Si lge« in tin- S|nTinat. i a M.u-ii- 



i l.inn pp. i',;i-74. June, 1907. l 



Lb— The 1 i "( Illumination, pp September, 1901 30c. 



6. 1 0. On the Determination of the Magnetic Behavior of the Finely Divided Core of 



an Electromagnel while a Steady Ourrent i* ixinn Established in the Exciting Oofl. pp. 

 mber, 1907. H.30. 



6. Britoi C L. B. — The Demagnetising Factors for Oylindrioal Iron Rods, pp 188 



S. ptember, 1907, 11 15. 



7. Laws, O.N — Outlines of a New System of Thermodynamic Chemistry, pp bar, 



1907. 40c. 



8. Sangku, C. K . and Blai k. 0. V. -- The Quantitative Determination Of arsenic by the Qui 



U thod. pp 2 pi. October, 1907. 40c. 



B. Babobb, c. K.. and Black, 0. K. Phi Determination "i Arsenic in I tine, pp 

 October, 1907. 25c. 



