Richmond dispatch. [volume] (Richmond, Va.) 1884-1903, 1884-08-17
e.ri1rifilc EfNfcs.

II has been observed by NJ. II. lie Chate.
lier that the lmc removed from cementS 1y
the acton Of water Is not free. ~ is gene
rally supposed to be the case, but in 2 con-
dition o. combination.
A geological map OF France. on a scale
q / 10 100000. prepared by GM. G. VAS
sour and J.. CarcZ, will be completed in -
sheets early next year. Il ], the first that
has been executed since 1872. Some OF the
sheets have already been sent to press.
From experiments by 81. L. Mcrcadicr
on rods Of steel and iron held at two points
II appears that the number ~ vibrations Is
PROPORTIONAL to the thlckncs, In The dircc-
ton OF the displacement, inver5ciy proper
.ional 10 the square oi the length, and in
dependent OF the breadth.
Researches by Or. Il. SchiG on changes
Ct volume during fusion do not confirm the
view taken by Krsifi that a constant diIer.
cnco in composition corresponds to a con-
slant difference in the molecular volumes
referred TO the melting point. 1t appears
that the melting point is not a point Of
physical compatibility, as is the ease. in
part at lesst. with the boiling point.
u. Rouire has identified the recontly.cX-
plored Wed Nargeil and Lake Kelbiah,
in Tunis. with the ancient river Triton and
Triton Gulf. Lake Kelbah. waich still
communicates intermi;tentiy vita the sea,
between Carthage and llGmmamet, Had
rumctum,) appears 10 be She largest in
North Africa, with circumference OF nesr-
" thirty miles at low water and q length o.
twelve miles.
From careful study Of series OF de-
signs cf the planet Venus, executed at
Grienan during the present year. NJ. 2.
Lsmay infers that perfectly circular pro-
tubenDcein the southern hemisphere, pre-
sumerably volcano, has an elevation of pro-
badly net less than seventy miles. He ar-
CUES in paper read before the Academy
Of Sciences, Pals, that tins enormous
he.ght il in 10 way Incompatible with the
volcanic nature OF the planet.
An anslysis OF the fragments Of me-
icoriie reported 70 have fallen in February.
1850, at NerarDn. in the district Of Iernd.
sixty miles wfsl Of Teheran. Persia, has
ju.t been submitted by Or. I holOZan 10 VI.
Daubree. II reveals the presencc Of bronx
lie. pcshamtse, perdote, nickel, aud granu-
lated iroD, thus showing the same cOn>,itu-
ton % that Of the remarkable metcOrites u
LOerono 1882. Esiervillc QS70), IIainholtz
QSjG), and Newton county, Ark. QsGJ.)
Setting apart differences 81 muscular
capacity and adaptation. n man, SAYS Mr..
Richard 4. Proctor, in order to Nv would
need wings bearing the same proportion
10 bis lody as ~ observe in the wings NJ
the sparrow or the pigeon. In fact. the
wings commonly assigned to angels by
scul ptors and painters would not be so dis
proportional to the requirements OF tlight
as has been commonly supposed il only
the muscular power OF the human frame
were well adapted TO act upon wings so
placed aud shaped and there were no ac-
tual inferiority in the power OF human
muscles (crosS section for cross section) as
compared With taose Of birds.
An illustrated description OF the new
Brush immature has appeared in the Eng
HSh Mechanic. The principal feature OF
this armaturs is thatithe literally proiectin K
portions, between which the wires are
wound 10 form the bObbins, are built up Of
q series OF comparatively thin and distinct
metallic plates interposed between the folds
Of metallic ribbon, which, when cOiied,
either alone or in connection with base
ring on which II is wound, forms the an
nular portion Of the armature. Chiefly for
convenience in construction Mr.. Brush
employs the base ring, and coils the band
thereon very much rs ribbon is spoiled
bot in the operation OF winding he inter-
poses between the coils, oa each side OF the
point or place where bobbns are desired,
thin soft metal plates. the ends OF which
project out literally beyond the sides oil
the band-iormed ring Substance equal OF
about equal 10 the thickness OF The bo5bin
OF bundle OF wires 10 be wound around
the .baDd-iormed ring, 70 that both the
bobbins and the plates, when the aTmature
IL revolved in the machine. shall just clear
TIE pole pieces OF the field magnets.