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JDH on his way to Calcutta [Kolkata] to ask Lord Dalhousie & Jung Bahadur together for permission to travel in Nepaul [Nepal]. Resting with cousin of Brian [Houghton] Hodgson's. Discusses Lobb & his collecting: Lobb has a Ward's case full of young Argenteum. Discusses Sikkim incident, Lushington & the General in detail. JDH has arranged & parcelled vast collections, some hundred men's loads. [Hugh] Falconer [HF] has informed JDH of the dispatch of some of his collections by the ship 'Queen' under Captain McLeod. The shipment incl. all of the 1848 collection & part of the 1847 collection incl. the leaf bellows, guns, wood cups & vast chest of museum articles. JDH has sent all his drawings of c.300 species & sketches, incl.fungi. Has drawn around 500 species & plants in total. Also sends a few dried plants chiefly Compositae from 17 to 19 ,000 feet. Tchuka rhubarb is amongst the drawings. Hopes WJH will publish Rhododendron series consecutively in 3 folios fascicules. Has descriptions ready for Apr Southampton mail. The Hodgsonia plate WJH sent is magnificent. If he goes to Nepal JDH hopes to send the desired anther drawing. Discusses telescope, actinometer & compass. Knows nothing of Boott & has not received his Ward's cases. Thomson is collecting Rhododendron dalhousiae, R. argenteum, R. punctatum[?], Orchideae & sundries. At JDH's request HF planted a few seeds of nearly all the Rhododendrons in Ward's cases for RBG Kew. Lord Hardinge writes craving Rhododendron & alpine seeds but JDH has none. Courtenay has left Lord Dalhousie. Also mentions Grey, G.G. [George Gardner], [Archibald] Campbell & Welby Jackson[?]. Discusses the reasons for & against going to Nepal incl. credit of being the greatest Himalayan traveller if he goes in by Sikkim & out by Kumaon. Would not go to Bhotan [Bhutan] without 500 men in front & behind him. Is overloaded with Sikkim politics.
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Clarifies questions and includes his calculations of number of days since the five phenomena (see RP 1850-3-13). Will send some calculations to Astronomer Royal.
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Delays in finding new canoe crews each few days to go upriver, arrived at Bara 30th of December; took 34 days from Santarem. Plagued by mosquitos until reached Rio Negro, which deserves its name: waters are “black as ink”, but mercifully no mosquitos. Staying with Sir Henrique Anthony; Richard Spruce arrived there previous evening. Impossible to send live animals from here, would not pay to do so. Collected more umbrella bird skins, bell birds, and two new species of anacaris [aracaris?] (small toucans).
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Thanks SPW for his history of Aptychus, which makes A. D. d’Orbigny’s view [that it is a cirripede] improbable. [See Fossil Cirripedia 1: 3.]
Specimens SPW sent are very useful and interesting.
Regrets missing JH's visit; discusses influences of atmosphere and solar position on Indian weather and difficulty it causes in obtaining meteorological laws.
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Recommends F. E. Wilmot for election to R.S.L.
Thanks for the gift of a book [Cape Results?] made to the observatory at Toulouse. Comments favorably on the book.
Apologizes for not being at home when JH called, and thanks JH for his family's kindness to GA's children during the past winter.
Has never heard the polar axis approximation. JH's treatise on perspective must be very complete. John Taylor is his old publisher. Has got 64 more syllogisms symbolized.
Thanks for birthday gift. Health of friends.
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Has just received a memoir from Bastiaan Bomme of Middelburg on the comet of 1264 and 1556. Sends the chief results. Comments on the findings and future appearances of the comet.
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