23 Conclusion

Although such a variety of interesting facts have been already accumulated, the subject we have been discussing is one of which comparatively little is really known. The natural history of the tropics has never yet been studied on the spot with a full appreciation¹ of “what to observe” in this matter. The varied² ways in which the colouring and form of animals serve for their protection, their strange disguises as vegetable or mineral substances, their wonderful mimicry³ of other beings, offer an almost unworked and inexhaustible field of discovery for the zoologist⁴, and will assuredly throw much light on the laws and conditions which have resulted in the wonderful variety of colour, shade, and marking which constitutes one of the most pleasing characteristics of the animal world, but the immediate⁵ causes of which it has hitherto been most difficult to explain.

If I have succeeded in showing that in this wide and picturesque⁶ domain⁷ of nature, results which have hitherto been supposed to depend either upon those incalculable combinations of laws which we term chance or upon the direct volition⁸ of the Creator, are really due to the action of comparatively well-known and simple causes, I shall have attained⁹ my present purpose, which has been to extend the interest so generally felt in the more striking facts of natural history to a large class of curious but much neglected details; and to further, in however slight a degree, our knowledge of the subjection of the phenomena¹⁰ of life to the “Reign of Law.”

The End

1 appreciation   

n.评价；欣赏；感谢；领会，理解；价格上涨

参考例句：

• I would like to express my appreciation and thanks to you all.我想对你们所有人表达我的感激和谢意。
• I'll be sending them a donation in appreciation of their help.我将送给他们一笔捐款以感谢他们的帮助。

2 varied   

adj.多样的，多变化的

参考例句：

• The forms of art are many and varied.艺术的形式是多种多样的。
• The hotel has a varied programme of nightly entertainment.宾馆有各种晚间娱乐活动。

3 mimicry   

n.（生物）拟态，模仿

参考例句：

• One of his few strengths was his skill at mimicry.他为数不多的强项之一就是善于模仿。
• Language learning usually necessitates conscious mimicry.一般地说，学习语言就要进行有意识的摹仿。

4 zoologist   

n.动物学家

参考例句：

• Charles darwin was a famous zoologist.查尔斯达尔文是一位著名的动物学家。
• The zoologist had spent a long time living with monkeys.这位动物学家与猴子一起生活了很长时间。

5 immediate   

adj.立即的；直接的，最接近的；紧靠的

参考例句：

• His immediate neighbours felt it their duty to call.他的近邻认为他们有责任去拜访。
• We declared ourselves for the immediate convocation of the meeting.我们主张立即召开这个会议。

6 picturesque   

adj.美丽如画的，（语言）生动的，绘声绘色的

参考例句：

• You can see the picturesque shores beside the river.在河边你可以看到景色如画的两岸。
• That was a picturesque phrase.那是一个形象化的说法。

7 domain   

n.(活动等)领域，范围；领地，势力范围

参考例句：

• This information should be in the public domain.这一消息应该为公众所知。
• This question comes into the domain of philosophy.这一问题属于哲学范畴。

8 volition   

n.意志；决意

参考例句：

• We like to think that everything we do and everything we think is a product of our volition.我们常常认为我们所做和所想的一切都出自自己的意愿。
• Makin said Mr Coombes had gone to the police of his own volition.梅金说库姆斯先生是主动去投案的。

9 attained   

（通常经过努力）实现( attain的过去式和过去分词 )； 达到； 获得； 达到（某年龄、水平、状况）

参考例句：

• She has attained the degree of Master of Arts. 她已获得文学硕士学位。
• Lu Hsun attained a high position in the republic of letters. 鲁迅在文坛上获得崇高的地位。

10 phenomena   

n.现象

参考例句：

• Ade couldn't relate the phenomena with any theory he knew.艾德无法用他所知道的任何理论来解释这种现象。
• The object of these experiments was to find the connection,if any,between the two phenomena.这些实验的目的就是探索这两种现象之间的联系，如果存在着任何联系的话。