6 
YORKSHIRE NATURALISTS' UNION. 
ROBERT LAW, F.G.S., Fennyroyd Hall, Hipperholme, Yorks. 
1. "Explorations in Caves." Illustrated by Wall Diagrams. 
2. " Flint Huntingf on Lancashire and Yorkshire Moors." 
3. '*A Journey to the Rocky Mountains and Visit to the Camp of 
the North American Indians." 
4. "An Age of Terrible Reptiles." 
5. Progression of Life on the Earth." 
KENNETH MACLEAN, Pennine View, Harrog-ate. 
1. " Plumage." 
2. "Some Ornithological Evolutions." 
3. "Birds that are Misunderstood." Illustrated by Slides and Sketches. 
THOS. SHEPPARD, F.G.S., The Museum, Hull. 
1. "Early Man on the Yorkshire Wolds." 
2. "An Ice Age in East Yorkshire." 
3. "A Geological Ramble on the Yorkshire Coast." 
4. "The Romans in the Humber District." Illustrated by Lantern 
Slides. 
JNO. W. TAYLOR, F.L.S., North Grange, Horsforth, Leeds. 
"Structure and Life-History of the Garden Snail" {Helix aspersd), 
Illust ated by Lantern Slides. 
A. WHITAKER, Savile House, Worsborough Bridge, Barnsley. 
1. " Bats : Their Structure and Senses, etc." 
2. " Bats : Their Haunts and Habits," 
3. " Bats : Their Reproduction and Breeding Habits." Illustrated by 
Lantern Slides. 
T. W. WOODHEAD, Ph.D., F.L.S , Westfield, 43 Somerset Road, 
Almondbury, Huddersfield. 
1. "Plants of the Moorlands." 
2. "Natural History of Water Plants." 
3. "Woodland Plants." 
4. "Symbiosis, or Mutualism in Plants." 
5. "Spring and Autumn Tints." Illustrated by Lantern Slides. 
The Societies affiliated with the Union still show a 
satisfactory increase in numbers. Forty-one Societies are now 
affiliated, and during the year four new Societies have joined, 
namely : — The Hebden Bridge Literary and Scientific Society ; 
the East Riding Nature Study Association ; the Shepley and 
District Naturalists' Society ; and the Doncaster Grammar School 
Natural History Society. In addition, the following Societies 
have increased their subscription to the full affiliation amount : — 
The Malton Naturalists' Society ; the Halifax Scientific Society ; 
and the Cleveland Naturalists' Field, Club.* The total member- 
ship of the Societies affiliated is now 3368. 
The Statistics furnished by the Secretaries of the various 
Societies to the Union show that the average membership of each 
Society is 82, or a total of 3368, as already stated. Added to this, 
the membership of the Union, the total numerical strength is 3881. 
* This list includes those elected at the Annual Meeting. 
