The latter he had discovered at Nice on 4 September 1896, but it was not seen on its return, a little less than 7 years later, and was considered a lost comet and consequently designated D/1896 R2.
Potonji je otkrio u nici 4. rujna 1896., ali taj komet nije viđen kad se trebao vratiti 7 godina poslije te ga se smatralo izgubljenim te zato označen D/1896 R2.