His research on Orchis maculata.

Discusses effect of disuse of anthers in Salvia officinalis.

Pleased CD can use his observations on Primula elatior.

Informs LD of the death of Francis Darwin’s wife, Amy.

Reports the death of Francis’ wife, Amy.

CD grieves over death of Frank’s wife Amy; worries that it will weaken Frank’s determination to pursue his scientific work.

Thanks JS for three essays. Has read with great interest the essay on the basking shark ["Sur les appareils tamiseurs ou fanons branchiaux du Pélerin", Kjo|benhaven Oversigt (1873): 47–66]. The explanation that the comb-like structures are of the nature of teeth is a "most wonderful case".

Sends his photograph.

Thanks CD for sending a photograph.