214 
NATURE NOTES 
to escape by coming out and swimming away ; the creature’s 
behaviour when disturbed by the naturalist clearly suggest this,* * * § 
and in other circumstances, possibly, the creature may occa- 
sionally a’oandon its home. We know something of a faculty 
of “ homing ” in molluscs of another class, but it seems 
improbable that the Lima, having once gone out, ever finds its 
way back; more likely when it settles down again it does so 
in another place, and there sets about the building of a new 
domicile. 
Among other nest-making bivalves are some of the family of 
mussels (Mytilidse), a few of which are found in nests, or cases, 
more or less similar to those of Lima. The young of the horse- 
mussel (Modiola modiolus), and those of the prettily painted 
Modiola adriatica, often fasten together small stones, &c., and thus 
make rude nests. | The little Modiola phaseolina does the same, 
as also do several species of Modiolaria.t Modiolaria discors, 
according to Alder, “ forms for itself a kind of nest or case 
by stitching together the small sea-weeds or corallines with its 
byssal threads; ”§ and according to Forbes and Hanley, 1| it 
has occurred in the Irish Sea, in nests of fragments of sea-mat 
(Flustra foliacea) and masses of sand agglutinated together and 
combined by byssal threads. 
REVIEWS AND EXCHANGES. 
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This is practically a new work under an old name, for the veteran naturalist, 
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of an instrument and its accessories, as to collecting and mounting, that the 
beginner in microscopy requires. The result is a book which is, so far as we 
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Skertchly's Geology. Revised by James Monckman, D.Sc. Tenth edition. 
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This so-called edition is practically a reprint, even the misprints of the edition 
published two years ago being reproduced. The book itself is, as we said then, 
an excellent one. 
* When nests are put into water and broken up, Gilchrist writes, “the 
animals may be observed flopping off in a Jerky manner, a habit admirably 
adapted to escape seizure by any too confident fish, so sudden and unexpected is 
each contraction by which the animal darts away.” 
+ Jeffreys, tom. cit., pp. 113, 117 ; Duprey, “ Ann. and Mag. Nat. Hist.” (4), 
xviii. (iSyfi), p. 339. 
X Jeffreys, tom. cit., pp. 120-1. 
§ Alder, Trans. Tyneside Nat. Field Club, i. (1850), p. 175. 
II Forbes and Hanley, tom. cit., pp. 197-8. 
