ADVERTISEMENT. 
: Tux large and constantly increasing number of micro- 
‘ seopical observers, and the demand for information 
< relating to improvements in the Microscope, and dis- 
S coveries made by its aid, have encouraged the belief 
that a Journal devoted entirely to researches prosecuted 
Q by this instrument would be welcomed not only by 
who are professionally interested in its use, but 
by all who employ it for amusement and instruction. 
Although the branches of knowledge in which the 
leroscope is em ployed as an instrument of research are 
very various, yet it so happens that the departments 
a science in which it is used are precisely those most 
intimately connected with each other. It is on this 
ground that the Editors hope to meet with encourage- 
ment from various classes of labourers in the field of 
“ence. No department of knowledge, inquiry in 
Which can in any manner be assisted by the aid of the 
Microscope, will be neglected. In recording the forms 
of minute crystals, the molecular arrangement of mineral 
vodies, and the structure of fossil remains, the Editors 
hope to render assistance to the Chemist, Mineralogist, 
and Geologist. In the investigation of the tissues and 
‘unctions of plants and animals, and the countless forms 
* microscopic creatures, they hope to interest the 
votanist, Zoologist, and Physiologist; whilst in re- 
_ ording all that is being done by the Microscope for the 
elucidation of the minute structure of the human body 
= health, and the state of its fluids and solids in disease, 
,». Fust to be able to secure the support of the 
Medical Profession. 
