Letter to Sir Archibald Geikie from Richard Baron in which he reminds Geikie that he had offered to make thin sections to identify rock samples which he had sent him. He expresses concern that he has had no response to the paper and rock specimens which he sent, especially as he has had a response concerning some plant specimens which he sent to Kew at the same time. He reports that a Swiss government geologist will shortly arrive in Madagascar and that gold has been found in 8 or 9 localities across the island. He reports that he has been writing a paper on the Geology of Central Madagascar, and wonders if it would be acceptable to the Geological Society.