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ba 
8 
VOLUME 48. 
Brut, Lours.— On ae Ultra Violet Component in Artificial Light. pp. 1-29, 
2pils. May, 1912. 
Watcort, Henry P.— un pico a pp. 31-44. June, 1912. 30c. 
Paiuurrs, H. B. and Moors, C. L —A Theory of Linear Distance and 
Angle. pp. 45-80. July, 1912. te 
Cuivers, A. H.— Cieuoreais Diagnoses of New Species of Chaetomium. pp. 
1 July, 1912, 
Kent, Norton A.— ou with va Echelon Spectroscope of Certain — 
_in the Spectra of the Zine Arc Spark at Atmospheric Pressure 
91-109. August, 1912. Tae 
eohpnenede: A. E., and Prerce, G. W.— The Impedance - ere Receivers 
as affected by ‘the Motion of their Ducuaeaea pp. 111-151. September, 
aa . 
Tuaxter, Rouani p.— New or wegen Laboulbeniales from the Argentine. pp. 
155-223; August, 1912. 
Horson, Jonn Wituiam. ~ cuitare Baggage f Fungi producing Bulbils and 
Similar Propagative Bodies. pp. 225-306. October. 1912, $1. 
Bripeman, P. W.— The ieidia cae Properties of ace Water to 80° and 
September, 1912, pp. 307-362. 
Tuaxter, Rovanp. — Pr eliminary Descriptions of New dpi of Rickia and 
Trenomyces. Sentenher, ered pp. 363-386. 
Witson, Epwin B., and Lewis, Grtperr N.— The Space-Time asec fs 
itor le The ean ibuanieieess Geometry e. Mechanics and Electro 
eti November, 1912. pp. 387-507. $1. 
desma D. L.—On the "Bxtetence: and: scoala of the Ether. pp. 509- 
27. November, 1912. 40c. 
nigsee ed Epwarp C.—The History, Comparative Anatomy and Evolution, 
of ead redintesotis Type. Parts 1-4. November, 1912. pp. 531-571. 
pls. 1 $1 -~ 
Sancer, Saag s Ros and Rrzege,, Emits Rarmonp.—The Action of 
RT 
Sulphur Trioxide on “fino Tetrachloride. pp. 573-595. January, 1913. 
Cuark, A. a An — Heater and Automatic Thermostat. pp. 597-605. 
January, 1913. 
\Hoxtpen, Soe ce a dec from Cliffwood, New Jersey. pp. 
607-624. 4 pls. March, 1913 
Taser, Henry.— On the — Aiea EH of Hyper Complex Numbers. pp, 
625-667. March, 1913. 
Mark, Kenneta L.— Prelim wet ness of the Salinity of Sea-water in the 
Bermudas. ‘pp. 669-678. April, 1 20c, 
Hewwer, Wituam Artaur.— On oe var rages of the Pre-Soceaides: 
Critical Notes and Elucidations. pp. gots May, 1913. 80c. 
Cuester, W. M. The Structure of the ae Sere! ee 
crassa Wright and Studer. pp. 735-773. 4pls. May 
oe of Meetings; Officers and Committees; List 4 yinoes and Foreign 
Honorary M agg Siciommar and Standing Votes, ete. pp. 775-862, i-iv. 
Gapianber: 1913. 
(Continued on page 2 of Cover.) 
