432 REPORT—1890. 
shire Natural History Society on ‘Scientific Investigations in Hertford- 
shire in connection with the British Association,’ in which he pointed out 
several geological features in the county worthy of being photographed, 
and urged the formation of a local collection of geological views, to be 
commenced during the summer of 1890. 
An important proposal was brought before the Photographie Society 
of Birmingham by Mr. W. Jerome Harrison, who advocated a photo- 
graphic survey of the county of Warwick, to include pictorial, architec- 
tural, besides antiquarian and scientific, subjects; and alluded specially 
to the work of this Committee. 
Interest in the work of the Committee has been manifested abroad as 
well asin this country. Letters have been received from several foreign 
professors of geology asking for information and details of the scheme, 
and offering, in some cases, an exchange of photographs. Professor H. 
Reyer, cf Vienna, Dr. A. Leppla, of Berlin, and Dr. G. Dewalque, of 
Liége, have each specially interested themselves in the objects of this 
Committee. Professor J. F. Kemp, of Cornell University, Ithaca, New 
York State, U.S.A., has also taken steps to bring the subject before the 
Geological Society of America, with the view to the inauguration of a 
similar scheme in America. 
The Committee regard it as highly important that as many photo- 
graphs of sections, &c., should be taken as possible. Of these a carefal 
selection of the most typical views should be made to be sent in for 
registration. During the first year all views sent in have been registered, 
but in future it will be necessary to make a selection of those most suit- 
able, otherwise there will be an accumulation of photographs illustrating 
the same section or natural feature. 
It has been found quite impracticable to restrict photographers to any 
special size of print; it is therefore merely recommended that the plate 
should be as large as possible, the ‘whole plate’ size (83 by 63 inches) 
being the most suitable. 
Your Committee have not yet had an opportunity of fully discussing 
the question of the ultimate disposition of the photographs, and it has 
been thought advisable to defer a recommendation of this nature until a 
more complete series of photographs has been obtained. 
Meantime a suggestion has been made by Mr. Willem S. Logeman, 
principal of Newton School, Rock Ferry, that a volume of selected 
photographs, illustrating typical geological features, should be published, 
which would form a useful book of reference for educational purposes. 
At present the collection of photographs is not of sufficient proportions to * 
warrant the reproduction of a really complete scries of views from 
nature, such as it would be of advantage to students and others to 
possess; but the Committee .are bearing in mind the suggestion for 
possible use in the future, should they see their way to recommend its 
adoption. 
It is with great regret that the Committee have to record the decease 
of Mr. S. A. Adamson, who was a most active member, and to whose 
exertions and influence ihe progress of the work in Yorkshire is largely 
due. 
The Committee desire to express their obligations to Mr. A. Norman 
Tate, editor of Research, for the loan of a block for the purpose of illus- 
trating their Circular of Instructions. 
The work of the Committee having been, so far, of a preliminary § 
