1833] JOURNAL— CAMBRIDGE. 17 



June 18. Went to Colchester. The castle is well worth seeing. 

 It is of Roman architecture and consists of one large square tower. 

 It is now used temporarily as a prison. It is built of brick. The 

 Botanic Gaiden is very good ; the collection of plants is large, but 

 badly named. The ground is well laid out. 



June 21. Returned to Cambridge by coach through Halstead, 

 Haverhill, and Linton. The only object worth noting is that the 

 road passes near Hedingham Castle, a very fine ruin, once belonging 

 to the family of De Vere, Earls of Oxford. The same evening I 

 went to the rooms of the Philosophical Society, and was employed for 

 some time in finding rooms for the members of the British Association 

 that arrived. Mr. J. Curtis, the entomologsit, I tookto Corpus. 



June 22. Curtis breakfasted with me, and then we walked to 

 Grantchester. He dined with me in Hall. At four o'clock I went 

 to the Philosophical Society's house, and took my station at 

 "Table C" for the delivery of tickets to the members of the 

 British Association. Remained there till nine o'clock. 



June 23. Sunday. D. Don (Librarian of the Linnean Society) 

 breakfasted with me, and then introduced me to Mr. W. Christy, 

 jun. and Mr. A. Cunningham, M.A., the New South Wales botanist. 

 We three went to Trinity Church and heard Simeon preach. They 

 were much pleased. 



June 24. This day the Meeting of the British Association 

 commenced. I was employed at " Table C " till ten o'clock, at 

 which time I went to the meeting of the Committee of the Natural 

 History Section. Mr. W. L. P. Garnons, of Sidney Sussex College, 

 was elected Chairman, and Mr. D. Don and myself were appointed 

 Secretaries. At one o'clock there was a general meeting of the 

 whole body in the Senate House. 



June 26. Dined to-day in the Hall of Sidney College. Quite a 

 Natural History party. 



June 27. Dined with a Natural History party in Clare Hall. 



June 28. The last day of the meeting. At five o'clock there was 

 a cold collation in the Hall of Trinity College. It went off very well. 



June 29. This day Professor Agardt, of Lund, Mr. W. Christy, 

 Mr. Garnons, Stephens, the great entomologist, and Westwood 

 breakfasted with me. We went, under the direction of Henslow, 

 into the fens. We had the conservators' barge. At Baitsbite we 

 found Potamogeton zosterifoUus in the ditch leading up to the Horning- 

 sea road. At Clayhithe we examined Bottisham fen, and Professor 

 Agardt informed us that the Chara we had been accustomed to call 

 gracilis was the hyalina of his work. We followed the river as far as 

 Upware and went into the sedge fen. Saw in flower Stratiotes aldides. 



June 30. Sunday. Stephens and Westwood breakfasted with 

 me, and went to hear Simeon. 



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