208 Second Supplement to Dana’s Mineralogy. 
A silicate of galas) ees as eae 2 Sweden, and Przibram, Bohemia, 
the Fowlerit sent ace to Dauber, a similar torm to that of the Pais- 
bergite ; the Slloving ¢ are ite. rss he has obtaine 
- 1 Longbanshytta, a 6=111° a a e=93° 15 be=87° 18’ 
2. Przibra 119-1 94° 11/-92° 6° 87° 6’-87° 54’ 
3. Fowlerite, TH? 38" ie 6’ 92° 21'-98° 88’ 86° 11’-88° 17’ 
These minerals therefore are all referred by Dauber to Paisbergite. 
peg is an im nt observation, att pert ag a eay- 
mM. D ber recognizes the = So eS! in the 
cleavage ( (parallel to 6 and c) to augite. But by the posi- 
tion he gives the aenlids the further resemblance is not 
seen, The annexed figure shows this relation to be a close 
one, and exhibits the analogies between the a and 
a 
triclinic forms. e lettering assists in a direct comparison 
of the forms (see Min. p- 159). The following angles show 
plainly the parallelism. 
Pa gto gr Fvipcte Augite. | 
aisberg: eansee 
bs ar anise 4! «Ts t= 136° 274" 
s (I : 18 188° 114’ I: jit80? li 
@ (#%: O)=107° 16’ ti: O=106° 
ball’: O\=111° 83’ T: O=100 0 BT" 
cal: Oj= 93° 284" T: O=100° 61! 
# =144 
o (I: %) =186° 84/ I: ti =133° 324! 
de (2? : #)=131°9 27’ =: T: 4&4 = 138° 324’ 
PecrouirE [p. 305].—In a paper by M. F. Heddle and R. P. G as “(Phil 
Mag. [4], ix, 248), we learn that Thomson’s “Stellite” is eb SE pectolite, as 
well also as h ollastonite” from Kilsyth, the mineral from Costorphine Hill 
analyzed b Walle the “ Wollastonite” from Castle ock of Edinburgh an- 
alyzed by Kennedy Other English localities are Talisker aos } d 
ire, and Ratho near Edinburgh. atho mineral 
z occurs with steatite, calcite, barytes, and as — phs after coeiaiie nal 
by Dr. Heddle, and others ‘cited by him (loc. cit.) : 
: Fi 6a Na at A, Fe, Mg, K 
= ilsyth, 274 81:68 960 2-00 8-39 Thom 
seemed Hills st a A Re ee en (Mg) Walk 
astl 32:00 850 5:00 nedly. 
os 53 a6 8348 9:98 3:13 Heail we 
5. Ratho, Jibrous, 52-5 32°79 975 3-04 4 3 (1) Hedile 
ee att scouaiins £268 33°15 9-26 2°80 1-46 “ Heddle. 
7. Knockdalian Hill, 53-2 82:22 «9°57 ~=— 8-60 1:00 “ Heddle 
8 ; 29°88 9°55 3-76 2°73 dile 
ie: 34:38 - 988 » 3-26 0-42 Heddle 
10 or 3280 960 200 
11. Bavaria, ; Domed, re “1 82-06 6-10 4:01 0:86, K 2-79, Adam. 
Dit 43 for Na, Ca, Si, H, 1:44 
tll: 1, which he takes at Le4etl +) and writes the. foeurla ahs Bit eS Sita 
=Silica 52 “57, lime 34-95, soda 9-68, water 2°80==100. He reckons the #l with Us 
ided prisms, twinned sometimes parallel t 
of en other two faces ha and 4 — w is a face of perfec 
93° 30/ 
obtai taking for the artirp of silica 
Las 3304; hones for me : Bi, 5-22 : 11-484: 8-76, or vent 
een te 5662 the equivalent of silica, we have for a 
is er 
Mineralogy, p. 806, 3d 1 from top, for alumina, read lime— 
pec 
