lv CONTENTS. 
G. F. KUNZ. 
Phospuoresvent: Diamonds... .-.ctnacsdsesmaecctsmseon sy aekeene ct eae nate eee see 260 
G. F. MATTHEW. 
Phe GErOvOlEMUS “MAUNA «css scacueccesecnectoccavarmeareccttoneaerenecsctetancecmnescecans 101 
Two New Cambrian Graptolites with Notes on Other Species of Graptoli- 
tides Of that AGE... 0.5. scene de secoucensseusetemesine donecens sti ebeteseneenes cease 262 
W. D. MATTHEW. 
The Effusive and Dyke Rocks near St. John, N. B...................0.secceees 187 
R. A. MILLIKAN. 
A Study of the Polarization of the Light Emitted by Incandescent, 
Solid and iquidiSurtacessntranesecscsencsecrscvesoesscsencecereomaeeteeenace 155 
PROF. J. K. REES. 
The Penumbree of Sun-spots as shown in Rutherfurd’s Photographs with 
special reference to the discussion at the December meeting of the 
Royal Astrononn Calg society ic. -.pacec.cceccisets inccas aeons ces casece ane ee eee Chel 
HEINRICH RIES. 
On a Granite Diorite near Harrison, Westchester County, N. Y........... 80 
Papers read before the Academy and either not published, or 
published elsewhere than in these Transactions : 
NATHAN BANKS. 
Spiders of Colorado (by title) printed in the Annals of current date...... 100 
PROF. N. L. BRITTON. 
An Undescribed Ranunculus from the Mountains of Virginia (not 
PUTIN GCM) esis os Pah fcec cae sec vone viesiecieu cise s Cabpemecseune en eceetdeesbekecetemee ees 79 
CAPT. THOS. L. CASEY. 
Coleopterological Notes, VI. (By title, printed in the Annals of cur- 
TONE CALE) i. cecjswiaecsnt svc ceenecsewcubnes wocewese mens seen esmeeete dancin esteem ctietas 260 
PROF. J. M’K. CATTELL. 
Bodily and Mental Tests carried out on Members of the Freshman Class 
of Columbia College, by Drs. Cattell and Farrand (not printed)..... 277 
PROF. S. F. CLARK. 
On the Breeding Habits of the Alligator (not printed )..................0.000 62— 
MR. \C. F. COX. 
The Latest Theories of Diatom Structure (not printed )..............ceeeeeeee 71 
