dv CONTENTS. 
HAROLD JACOBY. 
Suggestions as to the Determination of the Relative Masses of the two 
Components of the Double Star Ea Cassiopeie from Rutherford 
Photozraphic Measures. ......ccsscc--.we-naasecntearepeee vane sdneeaeceen eee 39 
G. F. MATHEW. 
On the Occurrence of Cirripedes in the Cambrian Rocks of North America 144 
Faunas of the Paradoxides Beds in Eastern North America. No. 1...... 192 
FREDERICK J. H. MERRILL. 
Post-Pliocene Deposits of Sankaty Head.............-......s0sseecececesesseneres 10 
Notes on the Geology of Block Islands, 22... cc...c00:.cccessaseasssnecdssneee eens 16 
H. F. OSBORN. 
A Memorial Tribute to Prof. Thomas H. Huxley....................scseseeeeoes 40 
Cc. H. SMYTH, JR. 
The Genetic Relations of Certain Minerals of Northern New York........ 260 
JOHN J. STEVENSON. 
Notes on the Geology of Indian Territory.............sccscscsccceseeccececsceees 50 
The Cerillos Coal Fields, near Santa Fé, N. M.............ccc0.000 ssssssecceens 105 
FRANCIS B. SUMNER. 
The Varietal Tree of a Philippine Pulmonate..................sssesses cececeees 137 
GILBERT VAN INGEN AND THEODORE G. WHITE. 
An Account of the Summer’s Work in Geology on Lake Champlain...... 19 
T. G. WHITE. 
The Faunas of the Upper Ordovician Strata at Trenton Falls, New York 71 
Papers Read Before the Academy and either not published, 
or published elsewhere. 
FRANZ BOAS. 
Results of the Measurement of the School Children of Toronto............ 155 
Cc. L. BRISTOL. 
The Classification of Nephelis in the United States.................c:eseseeee 66 
J. MCKEEN CATTELL. 
A Method for Determining Photometric Differences by the Time of Re- 
CEP HON 35sec: 50's caves oshseanavndgynaushed atanyonbct diamonds euagassten accee emanate 155 
BASHFORD DEAN. 
Instinct in Some of the Lower Vertebrates.........ccsccccoscseccssessssscrsesccacs 126 
Notes ‘oneAncestral’ Sharks: ..oc.. 0: ccascsasacewonueatactsswcsesstuanedteeecemenceateae 40 
