Professional Reviews

The best-known reviewer of Frankenstein was Sir Walter Scott

Walter Scott’s review of Frankenstein
A more philosophical and refined use of the supernatural in works of fiction, is proper to that class in which the laws of nature are represented as altered, not for the purpose of pampering the imagination with wonders, but in order to shew the probable effect which the supposed miracles would produce on those who witnessed them. In this case, the pleasure ordinarily derived from the marvellous incidents is secondary to that which we extract from observing how mortals like ourselves would be affected.

Even in the description of his marvels, however, the author who manages the style of composition with address, gives them an indirect importance with the reader, when he is able to describe with nature, and with truth, the effects which they are calculated to produce upon his dramatis personæ.

In the class of fictitious narrations to which we allude, the author opens a sort of account-current with the reader; drawing upon him, in the first place, for credit to that degree of the marvellous which he proposes to employ; and becoming virtually bound, in consequence of this indulgence, that his personages shall conduct themselves, in the extraordinary circumstances in which they are placed, according to the rules of probability, and the nature of the human heart. In this view, the probable is far from being laid out of sight even amid the wildest freaks of imagination; on the contrary, we grant the extraordinary postulates which the author demands as the foundation of his narrative, only on condition of his deducing the consequences with logical precision

John Wilson Croker’s review of Frankenstein
Our readers will guess from this summary, what a tissue of horrible and disgusting absurdity this work presents. – It is piously dedicated to Mr. Godwin, and is written in the spirit of his school. The dreams of insanity are embodied in the strong and striking language of the insane, and the author, notwithstanding the rationality of his preface, often leaves us in doubt whether he is not as mad as his hero. Mr. Godwin is the patriarch of a literary family, whose chief skill is in delineating the wanderings of the intellect, and which strangely delights in the most affecting and humiliating of human miseries. His disciples are a kind of out pensioners of Bedlam, and like 'Mad Bess' or 'Mad Tom,' are occasionally visited with paroxysms of genius and fits of expression, which makes sober-minded people wonder and shudder.

But when we have thus admitted that Frankenstein has passages which appal the mind and make the flesh creep, we have given it all the praise (if praise it can be called) which we dare to bestow. Our taste and our judgement alike revolt at this kind of writing, and the greater the ability with which it may be executed the worse it is – it inculcates no lesson of conduct, manners, or morality; it cannot mend, and will not even amuse its readers, unless their taste have been deplorably vitiated – it fatigues the feelings without interesting the understanding; it gratuitously harasses the sensations. The author has powers, both of conception and language, which employed in a happier direction might, perhaps, (we speak dubiously,) give him a name among these whose writings amuse or amend their fellow-creatures; but we take the liberty of assuring him, and hope that he may be in a temper to listen to us, that the style which he has adopted in the present publication merely tends to defeat his own purpose, if he really had any other object in view than that of leaving the wearied reader, after a struggle between laughter and loathing, in doubt whether the head or the heart of the author be the most diseased.

I chose these two reviews of frankenstein because from reading it, they seem to understand the novel very well. They explain there thoughts and backs them up with details. It helps to understand Mary Shelly's novel and what her interntions were when creating the book.

Source: http://www.crossref-it.info/textguide/Frankenstein/7/400

Other reviews of frankenstien :
http://www.helium.com/items/925159-book-reviews-frankenstein-by-mary-shelley
http://www.cmlibrary.org/readers_club/reviews/tresults.asp?id=1759
http://tigersallconsumingbooks.blogspot.com/2012/02/book-review-frankenstein-by-mary.html