GO A JOURNEY IN BRAZIL. 
Science, where, notwithstanding its unattractive aspect, 
Mr. Agassiz receives many visitors, curious to see the 
actual working process of a laboratory of Natural History, 
and full of interest in the expedition. Here also pour in 
specimens from all quarters and of every kind ; voluntary 
contributions, which daily swell the collections.* Those of 
the party who are not engaged here have their work else- 
where. Mr. Hartt and Mr. St. John are at various stations 
along the railroad line, making geological sections of the 
road ; several of the volunteers are collecting in the 
country, and Mr. H mine well is studying at a photograph- 
ic establishment, fitting himself to assist Mr. Agassiz in 
this way when we are beyond the reach of professional 
artists. 
Our excursion of to-day took us to another of those 
exquisite drives in the neighborhood of the city, always 
along the harbor or some inlet of it, always in sight of 
the mountains, always bordered by pretty country houses 
and gardens. The Botanical Garden is about eight miles 
from the centre of the town. It is beautiful, because the 
situation is admirably well chosen, and because anything 
* Among the frequent visitors at the laboratory, and one to whom Mr. 
Agassiz was indebted for most efficient aid in making his collection of fishes 
from the harbor of Rio, was our friend Dr. Pacheco de Silva, who never lost 
an opportunity of paying us all sorts of friendly attentions. He added quite 
a number of luxuries to the working-room described above. Another friend 
who was often at the laboratory was Dr. Nageli. Notwithstanding his large 
practice, he found time to assist Mr. Agassiz not only with collections but 
with drawings of various specimens. Being himself an able naturalist, his 
co-operation was very valuable. The collections were indeed enriched by 
contributions from so many sources that it would be impossible to enumerate 
them all here. In the more technical reports of the expedition all such gifts 
are recorded, with the names of those persons from whom the specimens 
were received. 
