vl CONTENTS. 
HISTOLOGICAL. PAGE 
I R24 0K0\0 ee ei eerie emer mrmr mS EA Cen 1a ec: cy Gece 40 
PATIALOMNY 509.56. 4, Sindee dey ode te WSs nse BOG es “ah Gah Gh me carats ea teh al ooh a age 41 
Distal Complex Eye— 
(@yjil-te: 1 OR CROCE OaCe OO ECaOL Cen. mao cece men meno Cc =cedy =: - acta o No Sonn SOA GN 41 
COPNCE %., wecs 5: Savon erGeied Geo oh ay ac a oe eee) EM es cota Gate Mn Re Regs et? 42 
The hens 1:2) sya Seaton ae ee ee ee ORL gunman nee Meas) oe eka ee 42 
‘The ‘Capsule. ssoaitasdscceceen sec akon) Curse tey ye) au eee io Sars gs ema 44 
The Retina; Wyse wae ee eek ye) Ske eee bette. Sate Ghee eaten 45 
(a) “The sPrismeC ells >. 2a caesar iran ase cu iey sens inti eds 46 
Go)eebtites By ramared &@elis: 9c sca) ererusme tees are cesar sees. een 48 
(c) Ghe Lone Pigment Cells Ss 52s ae ee seen ee a 20 
(ad) Subretinall Nerve ARiSSuei i.) enue) secures ee ne Genes eres 53 
(e) Discussion sof Titeraturema a) aus eee eee ee ent 53 
(f) Function of the Retinal Cells, Patten’s Theory, and further 
TetterauUre a, op: sinc ws bo Gale Guin Sderh syab late eae een oct 56 
ihe Proximal Complex (Wye). 42.0 25 545 © aia cere ee ween 60 
The “Simple Wyes.. sje 2 i425 eae 3s ee eee Ge Sle er os ee 61 
inithocyst and Concretion . 2. s6.0. 4% 22 ole 2s) ee eee ee Merge ae 
The Hpithelium of the-Clubs ......42%5 52462:5.1.8- 5 Seu ecie 64 
Network and Multipolar Ganglion Cells .................... 67 
The: INCEVE TISSUE? Js. 4. fet secant Gl cengu ae Manes aaa cakes, eal fracas scien 67 
The Supporting: Wamellay syne ee 2 es cy et eue tape eee ee en ee 68 
Epithelium of Ampulla and Floating Cells .................. 68 
ihe KndothehumPmotethe: Peduncle= 4 yee = 99.40) ease een eee 73 
The Tentacles and Pedalia— 
Bhewhictoderm®: 2.5, ¢ aihesta we wee See oe AO ree eee ee ea ee 74 
(a)yribhreade@ells:. << ss) Gis acah evens, 6 ae Hr ce eo 7A 
@b) Muscle Wibers).< csv Jes 0.3. «0, S Bike ey ee eo eee 74 
(c)sGanelion=Cellli si te. eapeee ms a, sas cee eee 7D 
MHS (HNGORSrM, 46 2,8. Gost Must. a wie thus aaa eee eee are, ene eee 75 
SUMMARY: cis Se oieiee dean ier, hs Gata ace: ease, Sas ese itise. Gh eta es eee ULE 
TARA AUE WRG) Since. tc GAs, oaths sas Site eptalke: te wns eleeces ow ay) Wyler sane con sation elk cate Ramee 78 
EVRA ER EIN HEIRS 2 caeeste seus ine) Wes eee ey eee ae i ee 80 
