[ 535 3 
common green Mofs, in a Box with a glafs Cover. She brought 
forth feveral young ones, who flipp’d off their Skins, and the 
outward Membrane of their Eyes along with them, in fix 
Weeks after their Birth ; and they ihed them again two Months 
after : But being then put into Spirits of Wine to preferve them, 
they were killed ; but may ftill be feen in the Mufeum of the 
Society. They firfl loofen the Skin about the Mouth, and fa 
flip it off backwards, by wfiggling themfelves thro' the Entangle* 
ment of the Mofs : For fome of the Skins were torn, and Parts 
ftuck in the Mofe. 
G. M. 
XXI. An Improvement of the Celeftial Globe,. 
by Mr. James Fergufon. 
Read May 14. the Axis of the Globe, (Tab. 
' 747 ‘ V^/ X. Fig. 3.) above the Hour-Cir- 
cle, is fixed the Arch A at one End by the Screw 
D, fo as to leave fufficient Room for turning the 
Hour-Index occafionally : The other End at B, being 
always over the Pole of the Ecliptic, has a Pin fixed 
into it, whereon the Collets C and B are move- 
able by their Wires F and G, when the Screw E is 
fiackned, and may be made faft at Pleafure by this 
Screw ; fo that the turning of the Globe round will 
carry the Wires round with it, Ihewing thereby the 
apparent Motions of the Sun and Moon by the lit- 
tle Balls on their Ends at H and /. On the Collet 
C, in which the Sun’s Wire is fix’d, there is alfo 
fix'd the circular Plate L, whereon the 2 91 Days -of 
the Moon’s Age are engraved, which have their Be- 
ginning juft below the Sun’s Wire,- confequently 
the Plate L cannot be turned without carrying the 
Sun's 
