92. THE WOMBAT. 
3. The prints come ont vigorously in developing, but become weak 
after being dried. 
Paper not sufficiently sized, for which reason the images sink 
into its substance, or the drying of the paper has been too 
slow. 
4 The whites of the prints haye, after drying, a more {or less 
yellowish tinge. 
The sensitising solution in the developer is not sufficiently 
acid, or there has been insufficient immersion in hydrochloric 
acid, 
5. Black spots. 
Particles of metal embedded in the substance of the paper, 
causing a reduction of the platinum. 
May be due also to insoluble impurities in the chloro-platinite 
of potassium. ; 
These spots have a black nucleus with an extension of lighter 
colour, like the tail of a comet. 
A FEW DEFECTS IN THE SEPIA PAPER SOLD BY 
THE PLATINOTYPE. COMPANY. 
A dirty, yellowish veil appearing on development all over the 
print, but more observable in the lighter portions, is due to one of 
the following causes -—1. Want of sufficient ‘‘ Special Solution” 
in the developer. 2. Too much exposure of the developing solution 
to light. 3. Use ofa dish in which the enamel is cracked so as to 
expose the iron.—( Compiled) J.B.L. 
A LIST OF COLEOPTERA COLLECTED 
NEAR GEELONG. 
By J. F. MULDER. 
Part I.—Family Caraédzde. 
34. Calosoma schayeri ( Er.) Found in the hayfields in 
summertime, Geelong. 
118. Xanthophea grandis (Chaud.) Under bark of gum- 
trees, Geelong. 
127. of vittata (Dej.) Geelong. , 
brachinoderus (Chaud,) Under bark of gum- 
' trees, Princes Bridge, 
Geelong. 
7 
