Rosa, who asks about Men of Kent and Kentish Men, is referred to our 5th Vol., p. 322.
I. N. (Leicester.) There must be something wrong in the preparation of your chemicals. Consult the directions given in our Nos. 151, 152. We have seen some glass negatives of landscapes taken by Dr. Diamond during the past week, which have all the intensity which can be desired. The time of exposure in these cases has varied from fifteen to sixty seconds, the lens used being a single meniscus.
Amber Varnish. Our Correspondent Littlelens will find the directions for making this in No. 153. p. 320. It will be reprinted in the Photographic Notes announced in our advertising columns.
Dr. Diamond's Papers on Photography. It is as well to remind writers on Photography that, Dr. Diamond being about to republish his Photographic Notes, the reprinting of them by any other parties would be uncourteous—not to say piratical.
Sir W. Newton's Calotype Process in our next. His first communication was in type before the amended copy reached us.
Errata.—P. 90. col. 1. for "immiscuerunt" read "immiscuerint." P. 86. col. 1. for "honour" read "humour"." P. 84. col. 1. lines 46. and 48., for "Trajecteasem" read "Trajectensem."
We again repeat that we cannot undertake to recommend any particular houses for the purchase of photographic instruments, chemicals, &c. We can only refer our Correspondents on such subjects to our advertising columns.
Our Sixth Volume, strongly bound in cloth, with very copious Index, is now ready, price 10s. 6d. Arrangements are making for the publication of complete sets of "Notes and Queries," price Three Guineas for the Six Volumes.
"Notes and Queries" is published at noon on Friday, so that the Country Booksellers may receive copies in that night's parcel, and deliver them to their Subscribers on the Saturday.