友情提示:如果本网页打开太慢或显示不完整,请尝试鼠标右键“刷新”本网页!
读书室 返回本书目录 加入书签 我的书架 我的书签 TXT全本下载 『收藏到我的浏览器』

glaucus-第24部分

快捷操作: 按键盘上方向键 ← 或 → 可快速上下翻页 按键盘上的 Enter 键可回到本书目录页 按键盘上方向键 ↑ 可回到本页顶部! 如果本书没有阅读完,想下次继续接着阅读,可使用上方 "收藏到我的浏览器" 功能 和 "加入书签" 功能!


the ways and works of a captive soldier…crab; (31) to show them how 

much there is to be seen; and how full Nature is also of that 

ludicrous element of which we spoke above。  And; indeed; it is in 

this form of Natural History:  not in mere classification; and the 

finding out of means; and quarrellings as to the first discovery of 

that beetle or this buttercup; … too common; alas! among mere 

closet…collectors; … 〃endless genealogies;〃 to apply St。 Paul's 

words by no means irreverently or fancifully; 〃which do but gender 

strife;〃 … not in these pedantries is that moral training to be 

found; for which we have been lauding the study of Natural History:  

but in healthful walks and voyages out of doors; and in careful and 

patient watching of the living animals and plants at home; with an 

observation sharpened by practice; and a temper calmed by the 

continual practice of the naturalist's first virtues … patience and 

perseverance。



Practical directions for forming an 〃Aquarium〃 may be found in Mr。 

Gosse's book bearing that name; at pp。 101; 255; ET SEQ。; and those 

who wish to carry out the notion thoroughly; cannot do better than 

buy his book; and take their choice of the many different forms of 

vase; with rockwork; fountains; and other pretty devices which he 

describes。



But the many; even if they have Mr。 Gosse's book; will be rather 

inclined to begin with a small attempt; especially as they are 

probably half sceptical of the possibility of keeping sea…animals 

inland without changing the water。  A few simple directions; 

therefore; will not come amiss here。  They shall be such as anyone 

can put into practice; who goes down to stay in a lodging…house at 

the most cockney of watering…places。



Buy at any glass…shop a cylindrical glass jar; some six inches in 

diameter and ten high; which will cost you from three to four 

shillings; wash it clean; and fill it with clean salt…water; dipped 

out of any pool among the rocks; only looking first to see that 

there is no dead fish or other evil matter in the said pool; and 

that no stream from the land runs into it。  If you choose to take 

the trouble to dip up the water over a boat's side; so much the 

better。



So much for your vase; now to stock it。



Go down at low spring…tide to the nearest ledge of rocks; and with 

a hammer and chisel chip off a few pieces of stone covered with 

growing sea…weed。  Avoid the common and coarser kinds (fuci) which 

cover the surface of the rocks; for they give out under water a 

slime which will foul your tank:  but choose the more delicate 

species which fringe the edges of every pool at low…water mark; the 

pink coralline; the dark purple ragged dulse (Rhodymenia); the 

Carrageen moss (Chondrus); and above all; the commonest of all; the 

delicate green Ulva; which you will see growing everywhere in 

wrinkled fan…shaped sheets; as thin as the finest silver…paper。  

The smallest bits of stone are sufficient; provided the sea…weeds 

have hold of them; for they have no real roots; but adhere by a 

small disc; deriving no nourishment from the rock; but only from 

the water。  Take care; meanwhile; that there be as little as 

possible on the stone; beside the weed itself。  Especially scrape 

off any small sponges; and see that no worms have made their 

twining tubes of sand among the weed…stems; if they have; drag them 

out; for they will surely die; and as surely spoil all by 

sulphuretted hydrogen; blackness; and evil smells。



Put your weeds into your tank; and settle them at the bottom; which 

last; some say; should be covered with a layer of pebbles:  but let 

the beginner leave it as bare as possible; for the pebbles only 

tempt cross…grained annelids to crawl under them; die; and spoil 

all by decaying:  whereas if the bottom of the vase is bare; you 

can see a sickly or dead inhabitant at once; and take him out 

(which you must do) instantly。  Let your weeds stand quietly in the 

vase a day or two before you put in any live animals; and even 

then; do not put any in if the water does not appear perfectly 

clear:  but lift out the weeds; and renew the water ere you replace 

them。



This is Mr。 Gosse's method。  But Mr。 Lloyd; in his 〃Handbook to the 

Crystal Palace Aquarium;〃 advises that no weed should be put into 

the tank。  〃It is better;〃 he says; 〃to depend only on those which 

gradually and naturally appear on the rocks of the aquarium by the 

action of light; and which answer every chemical purpose。〃  I 

should advise anyone intending to set up an aquarium; however 

small; to study what Mr。 Lloyd says on this matter in pp。 17…19; 

and also in page 30; of his pamphlet; and also to go to the Crystal 

Palace Aquarium; and there see for himself the many beautiful 

species of sea…weeds which have appeared spontaneously in the tanks 

from unsuspected spores floating in the sea…water。  On the other 

hand; Mr。 Lloyd lays much stress on the necessity of a塺ating the 

water; by keeping it in perpetual motion; a process not easy to be 

carried out in small aquaria; at least to that perfection which has 

been attained at the Crystal Palace; where the water is kept in 

continual circulation by steam…power。  For a jar…aquarium; it will 

be enough to drive fresh air through the water every day; by means 

of a syringe。



Now for the live stock。  In the crannies of every rock you will 

find sea…anemones (Actiniae); and a dozen of these only will be 

enough to convert your little vase into the most brilliant of 

living flower…gardens。  There they hang upon the under side of the 

ledges; apparently mere rounded lumps of jelly:  one is of dark 

purple dotted with green; another of a rich chocolate; another of a 

delicate olive; another sienna…yellow; another all but white。  Take 

them from their rock; you can do it easily by slipping under them 

your finger…nail; or the edge of a pewter spoon。  Take care to tear 

the sucking base as little as possible (though a small rent they 

will darn for themselves in a few days; easily enough; and drop 

them into a basket of wet sea…weed; when you get home turn them 

into a dish full of water and leave them for the night; and go to 

look at them to…morrow。  What a change!  The dull lumps of jelly 

have taken root and flowered during the night; and your dish is 

filled from side to side with a bouquet of chrysanthemums; each has 

expanded into a hundred…petalled flower; crimson; pink; purple; or 

orange; touch one; and it shrinks together like a sensitive plant; 

displaying at the root of the petals a ring of brilliant turquoise 

beads。  That is the commonest of all the Actiniae 

(Mesembryanthemum); you may have him when and where you will:  but 

if you will search those rocks somewhat closer; you will find even 

more gorgeous species than him。  See in that pool some dozen large 

ones; in full bloom; and quite six inches across; some of them。  If 

their cousins whom we found just now were like Chrysanthemums; 

these are like quilled Dahlias。  Their arms are stouter and shorter 

in proportion than those of the last species; but their colour is 

equally brilliant。  One is a brilliant blood…red; another a 

delicate sea…blue striped with pink; but most have the disc and the 

innumerable arms striped and ringed with various shades of grey and 

brown。  Shall we get them?  By all means if we can。  Touch one。  

Where is he now?  Gone?  Vanished into air; or into stone?  Not 

quite。  You see that knot of sand and broken shell lying on the 

rock; where your Dahlia was one moment ago。  Touch it; and you will 

find it leathery and elastic。  That is all which remains of the 

live Dahlia。  Never mind; get your finger into the crack under him; 

work him gently but firmly out; and take him home; and he will be 

as happy and as gorgeous as ever to…morrow。



Let your Actiniae stand for a day or two in the dish; and then; 

picking out the liveliest and handsomest; detach them once more 

from their hold; drop them into your vase; right them with a bit of 

stick; so that the sucking base is downwards; and leave them to 

themselves thenceforth。



These two species (Mesembryanthemum and Crassicornis) are quite 

beautiful enough to give a beginner amusement:  but there are two 

others which are not uncommon; and of such exceeding loveliness; 

that it is worth while to take a little trouble to get them。  The 

one is Dianthus; which I have already mentioned; the other Bellis; 

the sea…daisy; of which there is an excellent description and 

plates in Mr。 Gosse's 〃Rambles in Devon;〃 pp。 24 to 32。



It is common at Ilfracombe; and at Torquay; and indeed everywhere 

where there are cracks and small holes in limestone or slate rock。  

In these holes it fixes its base; and expands its delicate brown…

grey star…like flowers on the surface:  but it must be chipped out 

with hammer and chisel; at the expense of much dirt
返回目录 上一页 下一页 回到顶部 0 0
快捷操作: 按键盘上方向键 ← 或 → 可快速上下翻页 按键盘上的 Enter 键可回到本书目录页 按键盘上方向键 ↑ 可回到本页顶部!
温馨提示: 温看小说的同时发表评论,说出自己的看法和其它小伙伴们分享也不错哦!发表书评还可以获得积分和经验奖励,认真写原创书评 被采纳为精评可以获得大量金币、积分和经验奖励哦!