CONTENTS. 
PAGE. 
Some Recent Papers on Earthworms, J. S. KINGSLEY. . ......... 
The TERR jizen of Structure in Poef pods. (Tllustrated.) ROBERT 
Sexual Immobility sa a s of the Development of the Sporophyte. 
Y: MACMIEMANS 6 o n o e A a a 22 
A aema ferni i ) E. A. Anprews, Po.D., ..... 25 
Siege Bercy ae of the Vertebrate Head. H. W. Norris. .... elves 95 
Some e Causes and Results of Poya among the Pinnipedia. C.C. 
Bieta ie ene, ee a a a ale a A N N eae 103 
On the Genesis a the Chromatophores in Fishes. (Jilustrated.) Cart H. 
ee er ig ee ee ee ake ae oP Pa ae ee ae 112 
An Indian ae in Western New York. A. L.Benepict,M.D...... 119 
Are Acquired Variations Inherited? H.F.Osporn.. .....2.... 191 
On the Origin of the Galapagos Islands. G. BAUR. ........., 217 
The Biological Work of American Experiment Stations.. C. M. Weep. . 230 
The Evolution of the Circulatory Organs. (JI/lustrated.) W.C. Cana . 237 
A i ids. Mrs. P. re RS le ae ase a E e we 48 
Record of American eg A DoD. PAROMLET. o ee eee 252, 343, 548 
pty re Customs of the Navajo India hiaten, IOR W Taigis is 303 
On Origin of the e Galapagos Isl saro "(Cone neluded.) G. Baur 307 
airen of the Progress of American Invertebrate Paleontology for the year 
1890. CHA g sa ei a Ce ae en ae 327 
Recent Studies of the Vertebrate Beak AW we 334 
Too Cells in Animal rae rk ary ratla i: 53 ‘Ss. op a cue bU 
nt Lava Flow in New Mex De a = = wa 524 
The Origin of the Avifauna of the Bake Oa Stars ee 528 
On the Genus Chlamydophorus. strated. ) `D. D. oe mee 540 
A Review of the Discovery of the Creta s Mammalia. (Jilustrated.) 
HENRY Famerp OURORN ee a a a ee 575 
Notes on Mesozoic Mammalia. O. C. Manso. ...........-. , 611 
T B AVINOR o a ee et ee 17 
ere Amateur Ph t to Sci (Illustrated. ) 
cW OODE: We a ee ee ee 6 
On the Relations of ae preted (illustrated.) G. Baur... 631 
Ene tatopterns. © (Flustrated.) E. D. Core, . -> <o a a a 685 
Te ny = Garden Vegetables. (Continued. ) E. L. Srurtevanr 694, 801 
A Reply to Pro rng h’s “ Note on Mesozoic Mammalia” cee sca 
ENRY TE On HE EES Be en | ee are 75 
Hemlock and Peles. “Ww. T RE oi ee 784 
The Problem of the Soaring Birds. Gorau) J. LANCABTER. . .. 787 
A Sketch of the Geology of South = GUSTAVE STEINMANN. . .. 835 
Notes on the Hearts seh ge eae ale DA R PEER es ys 861 
C FREE GUNNER Ce nk ee ew 
— er the Prehistoric ensencate of Brittany (Illustrated). ALPHEUS S. to 
The Double M Monster Rosa-Josepha Biazek. Bay Keentiguie Se. 1 
guage and Max Müller. S. V. CLEV eaa E re ee es 951 
