LIST OF ILLUSTRATIONS. 
WOOD-CUTS. 
FIG. PAGE 
i THERON ATHRAT: HISTORY WiORK-ROOM sé. 25.55 Jobscdie< sas ois tese snd ove as 26 
eee ETO MEMIOAT UA BORATOR Yar. ss eye tls/epebe cs aise «2 Suwa eles o ote acee ele 33 
8. APPARATUS FOR COLLECTING THE ATMOSPHERIC GASES FROM SEA-WATER..... 37 
AMOI | CARBONIC-ACID PAPPARATUG): «cloves o.c0eeis dias s Set, ee aavere ses siencteestens 40 
Dee LE GAS ANATNSIS APPARATUS 75,00 ce alemrdsiatelseiiacietouield « cere eiseien terse 43 
6.) ARRANGEMENT OF THE CAPILLARY PORTION OF THE GAS-ANALYSIS APPARA- 
82, GAS-GENEGATING APPARATUS: .a5/5 2.1,» \e apcuiels vige solos 6 stsinrgs ae e\eeeire tod AG 
OM SHACG OIN Ga SAND BATE. srayjsnetcis) eile als Sion oreus ae izle, © eeberel eyassies cele were shesteidis 47 
LOM EDA SEP SV ATER“BOMTEMY bangs): statethe sis cietosie cele « sh tle sew cies chaclelerete 49 
11. INSTRUMENT FOR SLIPPING THE CYLINDER AT INTERMEDIATE DEpPTHS........ 51 
) OBER UCHANAN Siace STOPCOCK \WATOR-BODTEE 7s. « c)2/ae.cpeiew  ceeiele biele 6 siete) s osrere = 53 
See Ev DRAULIO we UMP! a. Sarocsys vicious sjsysora Aion venewile oleic ve: d.esersietorayeieioaie« 59 
4 Aer AD ATUETE) SOUNDING-MACHINE «.. syya/oieps a ato nlersi's/s.4.@ «= sores ieveroaiere oo wi 61 
omc VATV Ee SOUNDING-LEAD) (IN SECTION) a. -/cjecns< sss «ccc seem eee - 62 
UG Pie EET RAUD MTTNG Minster c ee fen fopsjaties ec ton oes) talc. succasire yo gohan os satfete eh atveponc{ eile euansrciter eh esehontee 63 
17. THe DreDGING AND SOUNDING ARRANGEMENTS ON Boarp THE ‘“ CHALLEN- 
(8 US Tene eee Bray aNnastavedersratavourictenantee tare encialera che ore et atasncoupene au MOD, 
19. Bete CastLe, Lisson. Shc SBSH eiicVerioh ove sv alavee sedepeisds vate nuthavetshatiens avuacuntecerem oma 114 
20. THE Porch or Santa Marta, BELEM.. ee ahsvale iy oiedereteketerie ne MID 
21. QUADRANGLE OF THE Magia OF an Manca, Ean Saves tis wey pdeatens 116 
22. CLOISTERS OF THE MONASTERY OF SANTA Marta, Bam ysis adsvoveh curate re ore 117 
23. CORYPHENIDES Serratus, Lowe. Half the natural size. (No. 4)......... 121 
2AM CARINARTACATLANTICAL, Natural size) (NO: 4)ie .6 siciccce cin «oes einen Lee 
25. Crio Pyramipata, Browne. Slightly enlarged. Surface. (No. 4)....... 126 
26. TrieteRA CoLUMELLA. ‘Twice the natural size. (No. 4).. 4 Ai Ale 
27. Cystosoma Neptunt, Guerin-Méneville. Slightly reduced. (No. 107) .. Se aric 131 
28. EUPLECTELLA ASPERGILLUM, Owen. Half the natural size............... 134 
29. KUPLECTELLA SUBEREA (sp. n.). Reduced one-third. (No. 5)............. 189 
30. Naresta Cyatats (sp. n.). Slightly enlarged. (No. 6)...............+- 143. 
31. Sarenta Varispina, A. Ag. Four times the natural size. (No. 6)........ 145 
32. Savenra Varispina, A. Ag. Showing the structure of the apical disk..... 146 
33. PHorMosoma Uranus (sp. n.). Natural size. (No. 6)............00000: 147 
34. Puormosoma Uranus (sp. n.). Apical surface. Natural size. (No. 6)... 147 
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