TlMEHRI. 
Mazerooni with the Essequibo, a Mr. SlEDEL, a pro- 
fessional orchid-collector, who had already visited 
the foot of Roraima some six months before, and 
who, he having on that occasion met with a very 
fine new Cattleya,* was then starting, to collect 
more of the same plant, on a second journey to 
its home almost at the same moment as that of our 
own start, but by way of the Mazerooni, whereas we 
were to travel by way of the Essequibo and Potaro. 
There is no need to dwell on any of the incidents of 
our journey up the Essequibo and up the Potaro as fir 
as the mission of Ichowra, which we reached on the 
24th of October ; for the reaches ot those rivers thus 
traversed by us have often before been described, and 
no special events distinguished this journey At 
Ichowra we found the Bishop of British Guiana, who 
was then paying his first visit to that mission. 
Referring to the paper, on our then proposed journey 
to Roraima, which I submitted to the British Associa- 
tion at Montreal, it will be found that I had proposed 
to stay some days at Ichowra mission especially on 
account of the visit of the Bishop. For this, I had been 
led to believe, would attract to that place many of the 
Indians who live near Roraima; and from among these I 
hoped to select guides and porters to take us to their 
homes, following the upper Potaro as far, perhaps, as its 
head. 
We did indeed find a considerable number of Indians 
at the mission, though far fewer than I had been led to 
expect ; but among those thus present were none from 
* This Cattleya has since been described by H. Reichenbach, jr., 
and named by him C. Lawrenceana, in honour of Sir Trevor Lawrence. 
