CONTENTS OF VOLUME VI. 1X 
in Glass, p. 569. The Leucocytes, p. 569. Spontaneous Generation, p. 
570. Successive Polarization of Light, p. 638. z Double Erecting Binoc- 
ular, p. 639. Angular Aperture of the Eye, p. 639. Classification of 
Microscopic Objects, p. 703. A Life Sli paoi m p. 705 
70 
k sam 
Bone Dust in Soap, p. 707. e Fresh Water Polype, p. 707. Repro- 
duction of Sponges, p.707. Multiplication by nerd of Wheel Animal- 
cules, p. 708. Spicu ae of Sponges, p. 709. ngous Growth in —_ 
P: 776. cae Definitions of Objectives, p. STR, raps tion o 
bert’s Band, p. 7 oto-mechanical Printing, p. 778. The Submersion 
Microscope, p. m The Micro-pantograph. ith cut. he 779. ount- 
ing Tissues in Balsam, 781. Mounting Tissues in Dammar Varnish, p. 
781. Logwood Staining Fluid, p. 781. Fungi in Drinkin Water, p. 781. 
Structure of Podura Scales, p. 782. Dry Rot, p. 782 
Norrs.— pp. 63, 124, 189, 246, 318, 378, 445, 505, 570, 639, 709, 782. 
ANSWERS TO CORRESPON DENTS.— pp. 256, 320, 384, 447, 512, 576, G40. 
EXCHANGES.— p. 192. 
Books RECEIVED.— pp. 128, 256, 320, 384, 448, 512, 576, 640, 720, 784. 
ERRATA. 
1. V.— Page 564, line 22, for ventral read dorsal; line 24, dele and Donacia 
er oe 8, for Donacia read drs ee line 6 from bottom, for They are read Alte labus 
ts. Page 566, line 1 from bottom, after while insert Telephorus. Page 745, line 29, for 
nair Ai Mandara s ead P E ophil latus line ae SOF OPO subter- 
ranea Raad Page 746, qu cut, for 
eneecus cavernarum. Page 759, line 1 Raphid ophor a read Ceuthophilus ; 
tins 23, for R read H; and for UA jia read enact stygius ; line 35, for R. stygia read 
Ceuthophilus stygius. 
Vol. VI.— Page 45, line 9 from bottom, for TENNIFOLIUM read TENUIFOLIUM. Page 72, 
line 10, for Denver 2105 feet above the sea read 5105 feet. Page 136, line 3, for equivalency 
ence. Page 138, line 4 of note, for applications read cob is a ep ig as 
i t P 
T 
before Beale. Page 192, line 4 from bott øm , for 321 read 317. Page 237, li mi 9 fro m bot 
d 
naus. 
i for glauconia read glaucoma. Page 350, line 3, ‘a oe icta sears ied rs ti 
~ phrocotis. e 327, place § before last note. Pages 327 and 529, in the last square of 
the upp insert a comma after binocular. Page ad line 25, for Dongali rend Dou- 
galt. Pisga 515, line 2 for W. Doubleday read Mr. Doubleday ; last line but one, for 
: ever unite their forces. Page sal line 6, for enclosed read 
eelosed Ii hee. 9, for meii read then; line 16, for trace read tr 
