A JOURNEY IN BRAZIL. 
CHAPTER I. 
VOYAGE FROM NEW YORK TO RIO DE JANEIRO. 
FIRST SUNDAY AT SEA. GULF STREAM. GULF-WEED. LECTURES PRO- 
POSED. FIRST LECTURE: " ON THE GULF STREAM IN THE GULF STREAM." 
AQUARIUM ESTABLISHED ON BOARD. SECOND LECTURE. ROUGH SEA. 
PECULIAR TINT OF WATER. THIRD LECTURE : LAYING OUT WORK OF 
EXPEDITION IN BRAZIL ; DISTRIBUTION OF FISHES IN BRAZILIAN RIVERS; ITS 
BEARING ON ORIGIN OF SPECIES; COLLECTING OF EGGS. TROPICAL SUN- 
SET. FOURTH LECTURE : PLAN OF GEOLOGICAL INVESTIGATIONS WITH SPE- 
CIAL REFERENCE TO GLACIAL PHENOMENA IN SOUTH AMERICA. FLYING- 
P^ISH. FIFTH LECTURE: GLACIAL PHENOMENA, CONTINUED. SECOND SUN- 
DAY AT SEA. ROUGH WATER. SIXTH LECTURE: EMBRYOLOGICAL INVES- 
TIGATIONS AS A GUIDE TO SOUND CLASSIFICATION. SEVENTH LECTURE. - 
MOONLIGHT NIGHTS. TRADE- WINDS. EIGHTH LECTURE: IMPORTANCE OF 
PRECISION IN LOCALIZING SPECIMENS. SOUTHERN CROSS. NINTH LEG- 
TURK: FRESH- WATER FISHES OF BRAZIL. EASTER SUNDAY. FIRST SIGHT 
OF SOUTH AMERICAN SHORE. OLINDA. PERNAMBUCO. CATAMARANS. 
TENTH LECTURE: METHODS OF COLLECTING. ELEVENTH LECTURE: CLAS- 
SIFICATION OF FISHES, AS ILLUSTRATED BY EMBRYOLOGY. PREPARATIONS 
FOR ARRIVAL. TWELFTH LECTURE : PRACTICAL LESSON IN EMBRYOLOGY 
CLOSING LECTURE : TRANSMUTATION THEORY ; INTELLECTUAL AND PO- 
LITICAL INDEPENDENCE. RESOLUTIONS AND SPEECHES. SINGULAR RED 
PATCHES ON THE SURFACE OF THE SEA. 
April 2d, 1865. Our first Sunday at sea. The weather 
is delicious, the ship -as steady as anything on the water 
can be, and even the most forlorn of our party have little 
excuse for sea-sickness. We have had service from Bishop 
Potter this morning, and since then we have been on deck 
reading, walking, watching a singular cloud, which the 
captain says is a cloud of smoke, in the direction of Pe- 
tersburg. We think it may be the smoke of a great deci- 
i 
