The Geelong Saturalist, 
== 
Vor I. OCTOBER, 1891. No. 
r2 
Each Contributor is responsible for the facts mentioned 
in his Paper. 
lr is with pleasure we present to our numerous readers the 
second issue of the Association's Quarterly. We are pleased 
to state that the past quarter has been one of success both in 
regard to attendances and the work accomplished. Many 
interesting and profitable meetings have been held, and the 
syllabus work has been faithfully carried out, adding much to 
the success of the Association. Various excursions have been 
held, many interesting specimens have been secured, and we 
are in hopes of greatly increasing our collection during the 
coming summer months. ‘The committee have been fortunate 
in securing some exceptionally interesting papers for the 
present quarter, and we would respectfully invite any of our 
readers who are not members to become so, and we can 
promise that their time will not be spent in vain. 
AN EVENING ON *COLQRS AND THEIR 1~/ 
CHEMICAL ACTION." 
A very interesting lecturette was delivered by Mr. A. Wilson 
on September 23rd. After treating with the various theories 
relating to inherent and transient colors, Mr. Wilson then 
selected for consultation and experiment, the «* Hama- 
toxylon, Campechicum,” “ Indigofera,” « Quercus Nigra,” 
Carthamus, (vegetable matter), “Coccus Cacti,” (animal), 
and the Anilioe (mineral), After explaining the different 
properties, and the various processes in extracting the coloring 
matter, a number of tubes were shown, including a variety of 
tints obtained from coal tar and some of the vegetable coloring 
matters; not the least interesting were those obtained from 
the inhabitants of the animal kingdom, the insect and other 
forms of life, whose exterior is anything but suggestive of the 
beautiful shades and tints produced by chemical treatment. 
The lecturette was one of a highly instructive character, and 
Mr. Wilson was awarded a hearty vote of thanks upon con- 
cluding his remarks. 
