THE ATTITUDE OF THE LABORATORY A certain number of so-called experimental physiologists, that is, the physiologists of the animal laboratory, who will have nothing but syllogistic deductions and quantitative determinations based upon animal experiments as the data of their science, will be apt to look askance upon the preceding paragraphs, and those which will follow.

The observation and experience of medical men, and the experiments of the physiologist in his laboratory must be depended upon for data which cannot be well obtained at first hand by young students.

In the preface to his work he had spoken more confidently of the fact that Nature, as an experimenter and a vivisector, can beat the physiologist to a frazzle.

[My friend, the Professor, told me all this, referring me to certain German physiologists by the name of Weber for proof of the facts, which, however, he said he had often verified.

Down to our own century, nothing could have been farther from the conception of anatomists and physiologists than the fact now generally admitted, that all animals, without exception, arise from eggs.

And the question whether plants are provided with a nervous system or not, thus acquires a new aspect, and presents the histologist and physiologist with a problem of extreme difficulty, which must be attacked from a new point of view and by the aid of methods which have yet to be invented.