QUESTION: Fix punctuation: The index to Animals and Plants and my fathers later correspondence show how much help he received from his old College friend
ANS: The index to 'Animals and Plants,' and my father's later correspondence, show how much help he received from his old College friend.]

QUESTION: Fix punctuation: The superstition of the socalled dark middle ages is consequently nothing compared with the superstition of the twentieth century governing a humanity who has subdued millions and millions of natures horsepowers and who can even direct the elements to work for it a humanity who can see hundreds of thousands of lightyears into space into macrocosm and who can also in awake day consciousness follow the atoms movement in microcosm
ANS: The superstition of the so-called dark middle ages is consequently nothing compared with the superstition of the twentieth century, governing a humanity who has subdued millions and millions of nature's horsepowers, and who can even direct the elements to work for it, a humanity who can see hundreds of thousands of light-years into space, into macrocosm, and who can also in "awake day consciousness" follow the atoms' movement in microcosm.

QUESTION: Fix punctuation: However If you have a look at this Summer Collection youll find that this impressive collection can help you get a more luxurious and sexier look in this Summer
ANS: However, If you have a look at this Summer Collection, you'll find that this impressive collection can help you get a more luxurious and sexier look in this Summer.

QUESTION: Fix punctuation: Plus the enhanced optics allow you to measure smaller objects further away
ANS:
Plus, the enhanced optics allow you to measure smaller objects further away.