Rating: 
Summary: Informative Book
Review: Like any other book by Crosby, this one is pretty much a must for anyone studying environmental history. The book goes into detail about how the New and Old worlds differ and how those changes were caused. He breaks the books into several sections and his noteworthy topics include discussions on disease, weeds and winds. At times, Crosby's writing is a bit boring because he tends to repeat a lot of things, but this is just his way of drilling important points home. Even if it may not be the most exciting book, it is very informative and deserves to be read.
Rating: 
Summary: Stimulating and Worthwhile
Review: The Europeans' displacement and replacement of native peoples in the temperate zones were more a result of "superior" biology than military conquest, according to Crosby in this book.Europe held an unassailable biotic mix that some native peoples and ecosystems could not withstand. This biota fucntioned as a team wherever Europeans took it. European germs swept aside native peoples. Europe's cattle, pigs and horses filled native biotic niches. European weeds and agriculture squeezed out native plants. This biological expansion of Europe created "Neo-Europes" which still function today in North America, Australia, New Zealand and southern South America. European imperialism often failed or was considerably delayed in areas where Europe's biota could not prevail. In China much the same biota was already present. Africa, the Amazon and southeast Asia were too hot, too fecund and too disease-ridden for Europe's animals, plants and humans. These areas were among the last to be dominated as a result, and then only briefly, when Europe's technology gave temporary edge to its armies.
Rating:
Summary: Biological winners and losers
Review: This is an excellent book on how and why the Europeans were able to conquer North America, Australia, temperate South America (particularly Argentina), and New Zealand--the so-called Neo-Europes, in Crossby's terminology. Crossby's thesis is simple: the native biota of those places (including humans, of course) did not coevolve with the invaders, and were consequently naive (i.e, unequipped) to deal with them. Or, put another way, the invaders were preadapted to deal with the new conditions, and aggresively advanced, in a teamlike fashion, to encroach the native biota. Crossby also explains why Europeans were not able to conquer other places (such as Greenland, the Labrador region, and the New and Old Worlds tropics), adducing mainly climatic reasons and the lack of technological expertise. To be sure, Crossby's arguments are not new. However, he does a great job at synthesizing an incredible wealth of historical data. His style, oftentimes humorous, also makes of his book an enjoyable read. I would recommend this book to anyone teaching a comprehensive course on the conquest of the places Crossby deals with. It is a much neglected fact that biology played a crucial role in expanding European culture.
Rating:
Summary: Eye-opening, well written, and convincing!
Review: This is one of the most revealing books I have ever read. Crosby has made me gasp in awe more times in one paragraph than I have reading most entire books. He explains not only how Eureopean plants, animals, and people are in so many places, but how they got into such a position, what advantages they started out with, which ones they developed, and why they failed in other places. His thesis is convincing because he gives several examples to prove his point, to show how his theory worked in each of these cases. I wish there were more books that were written so clearly and irrefutably. Written with the power of a true historian yet with the thrill of an action movie, it's a rare combination of skill. If you liked the subject of Guns, Germs, and Steel, you'll find this book to be even more exciting and easier to read.
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