NOTES—ORIGINAL AND SELECTED. An Ancient Pit at Little Dunmow, Essex.—Referring to my note on an ancient pit at Coggeshall (Essex Naturalist, vii., p. 68), Mr. Hastings Worrin, of Bourchiers, Little Dunmow, has been good enough to inform me that when land-draining in one of his fields some time ago the workmen dug through a number of black places in the clay containing a good deal of pottery in small fragments, and what appeared to be charred wood. The field is called Great Calthorps, and is numbered 107 on the Ordnance Survey (Sheet xxiv., 14). It slopes towards the Roman Road from Colchester to Bishop Stortford, but the pits were some distance from the road. In this field Mr. Worrin found, some years ago, a bronze fibula.—G, F, Beaumont, F.S.A., Coggeshall. Chigwell Moat.—It has been suggested that the site of this moat is such as to render it improbable that it surrounded a dwelling-house of the ordinary character. If, however, the evidence of field-names counts for anything, it would seem that Chigwell Hall once stood there; for, in the Tithe Map of 1838—for an oppor- tunity of studying which I am much indebted to the Vicar of Chigwell—the field in which the moat is, figures as "Little Hall Field," while the two immediately abutting on it were known as "Great Hall Field" and "Park Meadow." In later days, the house (now pulled down) just below the pleasant playing-fields of the Chigwell Grammar School, was known as Chigwell Hall ; but the ancient "site of the manor" is probably to be sought within the moat.—W. C. Waller, Loughton, September, 1893. The Joslin Museum.—In continuation of the remarks in the present volume (ante, p. 69), we are very pleased to learn from a recent notice circulated by the Committee that this valuable collection will now be secured for the Colchester Museum. Mr. Joslin originally asked £2,000 for his treasures, but in the event of their being purchased for Colchester promised a donation of £300. He has since reduced his terms to £1,300 nett cash, and will hand over the collection to the Committee on payment of that sum, subject to a further £200 being paid in four years' time at the rate of £50 per annum. Of the amount immediately required upwards of £1,100 has already been promised, and as active measures are being taken to secure the balance the Committee expect to be in a position to complete the purchase within the year of office of the present Mayor, Mr. Gurney Benham, who has taken so active an interest in the effort to secure this mag- nificent addition to the treasures of the Castle Museum. We heartily con- gratulate the Committee on the approaching success of their labours. To adapt a journalistic phrase, "other towns in Essex, please copy" !—Ed. A Harmless Mnemonic—A useful hint was given me by an esteemed botanist at a recent meeting of the Essex Field Club, and I think it would be well to publish the idea in The Essex Naturalist for the benefit of others. In common, no doubt with many, to whom natural history is an occasional rather than a constant study, I have found that the names of plants have an inconvenient way of being edged out of my brain by the crowd of everyday matters which have to do business in that centre. The suggestion made to me was that the best mnemonic was a study of the meanings of the names as far as possible. I have applied this principle with gratifying success, and find it of great assistance, while it also adds considerable interest to the study of botany and tends to prevent, moreover, those glaring "false quantities" and mispronunciations which even fairly good botanists sometimes let slip. Who, for example, could forget that