Asks if CSB can help him obtain specimen of Verruca.

Sending letters of introduction for JH's son [William] when he visits India and wishing him success in his appointment.

Grateful for AH’s long letter and suggestions. Delighted at what he says about "complemental males". CD feared no one would believe in them but now that Owen, Dana, and AH accept them, he is content.

Agrees with AH on cross-impregnation; has collected facts on this head but has done nothing with them.

AH’s paper on Alcippe [Ann. & Mag. Nat. Hist. 2d ser. 4 (1849): 305–14] caused him to lose sleep over its anomalous structure.

No summary available.

Thank daughter Isabella for account of Amelia Herschel's condition. Bank [of England] is in trouble again. Lists [Christmas] cards received. Attended Michael Faraday's wonderful lecture last night.

“Grieved to hear of the great loss my brother has suffered.” Unfortunately, fires at sea and shipwreck have become common. He will survive “and the name of Sir Alfred Wallace may [yet] shine forth.” Columbia is a gold mining community of fifteen thousand inhabitants, and is growing rapidly based on the achievements of our Company in providing water for the mines. Miners mostly get their own way. Foreigners are supposed to have a right to employment if they pay a state tax, but “Chinese and Mexicans are not allowed by the miners to work at all...and they carry out their ideas of liberty and equality by driving them out.” But our Company would not be pushed around when some miners protested that our rates are too high. I told them we must maintain current prices, and cut off the most prominent activists from buying water at any price, which deterred other “insolent” complainers.