Dear Father
It is rather difficult to know wh. paper Kovalevsky wants to see as there are 5 papers on same subject, but I have sent a copy of the biggest wh. contains most about moon’s motion.2
The others are in Phil Trans for 79, 80, 81 & two short ones besides in Proceedings for those years3
Yours affec | G H Darwin
Please cite as “DCP-LETT-13639,” in Ɛpsilon: The Charles Darwin Collection accessed on