(Continued liinit \iiiije .'< t'l Inrrr.) 



VOLUME 13. 



1. Mcksh,H. W.— Studies on Plooritei (IV.) Tb« Kathodo-Lumlneaoen fFlnorite. pp.1 16 



l |.i. Jane, r."07. 3.V. 



2. (iia-.KNMAN. .i M I i New - aufon from Mexico ; (II. Robq 



B, L New orotherwiM Noteworthy Bpermatophytes, chiefly from M mi. Kmus- 



B, I.., Ud BABTLUTT, II II \i\v I'lant- 1 1 . .in (iaiitfiiiitlii nml Mexico colli 



Cbieflj bj !'• tin. IV. i FUUIiD, M. L. l>i.i>:iio-cs 'if New Sin-riii.it |'h\ti'!i from 



Mexico, pp 17 68 J 1907. BOc. 



;(. Mauk, B. i.., ami Copklahd, If. - Maturation Btagea iii the Spermatogenesis of Veep* macu- 

 late I. inn pp. 69-74, June, 1907. 1"" 



4. Bull, i.. The Physiological Basis ol DlominatioiL pp. 75-86. September, 1607. 80a 



5. PBrnoa, B. O. — On the Determination oi the Magnetic BehaTior of the Finely Divided Cow of 



an Electromagnet while a Stead) Current La being Established in the Exciting Coil: pp. 

 97-182. Beptember, 1907. 11.20. 



6. Siirinii:MAOEN, C. L. H. — The Demagnetizing Factor* for Cylindrical Iron Rod*, pp. 183 



Beptember, 1907. SI. 15. 



7. l.Kwi-, (;. N Outlines of a New System of Thermodynamic Chemistry, pp.267 tober, 



1907. 40c. 



8. Sanger, C. R., and Black, O. F. — The Quantitative Determination of Arsenic by the (. 



Bfethod. pp. 295-324. 2pl October, 1907. 40c. 

 !>. Banobb, C. R., and Black, O. F. The Determination of Arsenic in Urine, pp 

 October, 1907. 25o. 



10. Richabds, T, W., mul Wbkdb, K. The Transition Temperature of Maaganoua Chlorid 



N.-u Fixed Point in Thermometry, pp. 341 350. November, 1907. 20e. 



11. K> m. V A., and Aveky, a. H. — Difference In Wave Lengths ol Titanium AA 8900 ami :j;U3 



in An- mul Spark, pp. 351-361. November, 1907. -or. 



12. luxTF.ii, (;. p., mul Wilson, J. H. — A Revisi i tin- Atomic Weight of Lead. Preliminary 



Paper. The Analysis ol Lead Chloride, pp December, 1907. I6e. 



13. PnacH, G. W. —A 81mple Method oi Measuring the IntenBit) oi Sound, pp.376 395. Febru- 



ary, 1908. 30c. 



14. Tbowbbidok, J. — Ixtngitudinal Magnetlo Field and tiie Cathode Bays, pp 397 104. Febru- 



ary, 1908 15c. 

 1". BSLL, L. Note on Some Meteorological Uses of tin- Polariscope. pp. 405-412. March, 



1908. I5o. 



16. I'uikii:, (i. H. The Sensory Reactions of Amphioxus. pp. 413-456. April, 1908. 46e. 



17. Diokbt, W. P. • On Delays before apayvwofocts in Greek Tragedy, pp. 467-471. May,! 



26a 

 l- Richabds, t. \y.. ami Rowu, a W. —A New Method for the Determination of the Specific 



Heats oi Liquids, pp.478 188. June, 1908. 25o. 

 IB. Newiui.i., s. h. Pisistratus and His Edition of Homer, pp. 489-610, June, 19 



i i.owniaiM.K. .1 Positive Rays. pp. 611-517. June, 1908. 15o. 

 21. Richabds, T. W.,and Mathews. J. 11 — c ■.rnint; the Useoi Electrical Heating in Fractional 



Distillation, pp. 619 524, June, 1908. 16c. 



