The appearance of the trails, roads, bridges, buildings, and facilities of all kinds is gradually being brought into harmony with the natural environment. Under the guidance of landscape artists, structural design and location are made conformable to maximum scenic advantages while at the same time, being inconspicuous themselves. A few examples will illustrate this trend toward artificial recession. In 1889 Captain Boutelle complained against the statute which prescribed that no hotel shall be erected within four hundred and forty yards of any object of interest. He urged a reduction of one-half the distance.[342] Now, all the accommodations in the immediate Grand Canyon area are being moved a modest distance away, where they will still provide the services which visitors need, but not intrude upon the natural scene. Another case is afforded by the bear shows. Formerly they were provided in several places; then modified to a less artificial presentation on Otter Creek. In 1942 they were discontinued. It is truly exciting for thousands of people to observe thirty or forty grizzlies jostle and cuff each other around a “combination salad” platform. Still, the circumstance is highly artificial, a sort of Roman holiday affair, and therefore inappropriate. It is hoped that the Lord of all American wild life may be allowed to go his way undisturbed, otherwise grizzlies may become “holdup bears and bums.” Such an eventuality, on a nocturnal basis of operation, is by no means improbable. That development would consign this magnificent animal to a precipitous disappearance from the earth. Yellowstone’s educational opportunities were early recognized and utilized by the scientists. The passing of time has widened this field-study interest. Supervised groups now come from all parts of America, with individual scientists hailing from both home and abroad. In fact, more than a hundred specialists have spent from a few weeks to several years in the Park. The results of these efforts have run up the volume of scientific titles to approximately five hundred.