4 CONTENTS E 
EDITORIAL NOTES 
n 
INE COG. pi CO C i e ee en a hg EE. N..269 
** Spineless Cacti” A iM ace eee nly WE Ree Ld 76 
CORNAGO im Plaut Natosk js dcl decade troia PDAS 141 
The Code OL the PUTES de a ead eis 143 
Some Remains of a Past Fauna.—Walter L. Hahn.................. 81 
The ''Knee-Joints" of Mougeotia.—]/. A. Nieuwland.............. 82 
Hints on Collecting and Growing Algae.—J. A. Nieuwland............ 85 
Some Thalictra from North Dakota.—Edward L. Greene............ 99 
Economic Value of Birds.—F. J o o. ans Gee tM oe AA 105 
y Notes on Populus, Plinius. (Plates pus "st )—Ivar Tidestrom........ 113 
Notes on Indiana Birds.—Walter E. Hahn... 118 
A Boulder of Jasperite. (Plate "ui Er M. CM igs o EU 120 
Migration of Birds in Van Buren Co., Michigan.—Bro Alphonsus...... 123 
Notes on the Stemless Lady's Slipper.—Edward L. Greene............ 125 
Nyssa sylvatica Marsh. (Plates IX., X.)—Theo. Holm.............. 128 
Book Novice | 
di History Of Hobby iy oor LO RESI tO E DA 137 e 
TENE AER d uiu eC ol OG qM LE DB RN CC 144 
Faunal Aud inIndiana. (Plates XII. dogs. )—Walter L. Hahn. .145,171 A 
The Plateau de Coteau du Missouri.— 3. Wil, oc edil. ec eA 157 E 
Some Western Species of Aquilegia. Ve mete XI ) Ivar Tidesirom...... 165 y: 
Rocky Mountain Botany.—Edward L. Greene............0......... 1809-73 
Banister's Catalogue of Virginia Plants. (Plate XIV $1 1i ICE 195 Du 
Early Spring Plants of Central N. Dakota.— DEM C LH a UTR E 197 in 
Notes on the Seedlings of Bloodroot. (Plate XV.) J. A. Nieuwland 199 E 
New Plants from North ota. ¡TES Lusncll.......... 204, 233 E 
The Laboratory Aquarium A NIEMAND CA a 
Dryopteris a Synonym. lace XVI, XVIL)—J. A. Nieuwland....... 224 d 
The Passenger Pigeo Ner Sie IL le ky oo a IRI AAT 227 A 
Notes on the Naiad Fauna of Rese lowa.—S. W. Geiser...... 229 E 
The Name of Our American Wax Myrtles.—J. A..Niewwland........ 238 4 
Pteridium, J. Agardh, a Homonyme.—/J. A. Nieuwland............... 243 E 
. Certain Aspects of the Species Question.—Edward L. Greene........ 245 a 
A New Genus of Rubiaceae.—J. A. Niewwland.................... 263 E 
