72 JOURNAL OF THE VOYAGE TO THE NIGER. 
all occasions it would be impossible to speak too highly, 
had fallen sick at the confluence, and were obliged to 
descend the river in the “ Wilberforce ;” but they declined 
going to Ascension for the re-establishment of their health, 
hoping to be able to pursue their scientific researches in 
Africa. Dr. Vogel lived only to the 17th December fol- 
lowing ; but his memory will be cherished, as long as Botany 
remains a science.” 
