\ Tue MicroscoPe. 59 
of the most important features of our meetings, will probably 
be given an entire day, or an afternoon and evening. Thus far 
not a single member has refused to assist, and among the ex- 
perts this year will be found a larger percentage than usual of 
our lady members. It is desired that all earnest working mi- 
croscopists shall contribute,towards the success of this session ; 
and all competent workers are hereby cordially invited to do 
so, providing they will report to me at Fairport, N. Y., previous 
to June Ist, what assistance they are willing to render. Short 
descriptions of everything of interest to microscopists are so- 
licited to be sent in now or at any time before the first of Au- 
gust. Descriptions of every new thing used, and of all new 
methods of work, also of old methods which have been thor- 
oughly tried and found successful, are desired for the Working 
Session Department of the Proveedings. It is earnestly re- 
quested that these papers be sent at the earliest possible date. 
Questions and answers are also solicited, now matter how siniple 
the questions may seem, providing information is really desired. 
Many an expert has been unable to answer some of the simplest 
questions, and it is safe to assert that few answers will be given 
in response to the one in the last number of THE Microscope in 
regard to the length of a ten inch tube. No one likes to admit 
that he is unable to determine the magnifying power of his ob- 
jectives or their angles of aperture, still it is a fact, neverthe- 
less, that not one in four who own microscopes can tell how it 
is to be done. Not long since a would-be expert informed 
some of his friends that he has a superior: two inch immersion 
objective, while another spoke of the “ mighty focus” of a cer- 
tain microscope ; and still another knew that the Arachnoidiscus 
Japanicus was made in Japan from its peculiar style. <A stu- 
dent in an Kastern College showed more wisdom than either of 
these when she innocently asked, “ what part of the microscope 
is the tube cast?” Only by asking questions with our eyes as 
with our tongues shall we gain knowledge, and a rediculous 
question may always be excusable while foolish assertions with- 
out knowledge often make the would-be wise man a laughing 
stock, much like a young man whorecently chanced to be with 
a party who were looking at Jupiter through a small telescope. 
He would not condescend to look through so inferior a glass 
