Instruct: Classify Amazon reviews into positive or negative sentiment
Query: a good lab manual but . . .

I've used this lab manual for a microscale inorganic laboratory course for about a dozen years. There is a nice selection of experiments which cover most of the basics appropriate for a senior-level course. But the reviewer who comments on the reaction yields is right. Some of the yields are so poor that I maintain commercial samples of the products so that students will have something to characterize. I have even written the authors with questions about improving yields in some of the experiments, but received few suggestions for improvements. Also, very few of the experiments take the students through reasonable purification steps for the products (I suppose because the yields are so low). But there are few competing inorganic lab manuals, and none that I am aware of for working at microscale.