time guiding my horse over the rough 

 parts of the trail. 



"Tropidolphus formosus we found in 

 the long grass on the plateaus and on 

 the sunny sides of San Bias near its base. 

 Phrynotettix tschivavensis was comon 

 at the entrances of the canyons in the 

 more rocky parts of the mountain range. 

 This species, before I was able to see it 

 clearly, I mistook for a small toad, the 

 warty protuberances on its flat thorax as 

 well as its large hopping legs aiding in 

 the deception. Dactylotum variegatum, 



a species whose distribution reaches quite 

 throughout the Rocky Mountain system, 

 we found on the higher ranges of the San 

 Bias region. This species, because of its 

 ornamental bands of a rich red color and 

 its blue and yellowish white markings, 

 has been called the 'Yankee Doodle 

 Grasshopper.' Brachystola mexicana, 

 which is a large and sluggish Grass- 

 hopper, we found quite common in the 

 sparsely grassy and rather bare portions 

 of the lower canyons of the San BlaJi 

 range." 



UNCLE JARVIS TALKS ABOUT GETTING ON IN THE 



WORLD. 



PART I. 



"Come, now, you boys and girls who 

 are studing natural history, I wonder how 

 many different ways of moving about 

 you can count in the animal world ?" 



Uncle Jarvis was always asking some 

 out-of-the-way question that was not 

 asked just in his way in the books. 



"I know," spoke up Tom Wood, who 

 always knew everything at sight; "there 

 are three — walking, flying and swim- 

 ming." 



"O now, how about snakes, Tom, and 

 snails and earthworms ? They don't have 

 legs or wings or fins." 



"Jack has you there, my boy ; but 

 there are a good many more ways than 

 these. What do vou say, Amy?" 



"Well," said Amy, thoughtfully, "I 

 watched a measuring-worm the other 

 day. That goes, you know, by looping 

 itself up and then stretching itself out 

 again at full length, only using its legs 

 at its two ends to hold on by. Then 

 there are the flying squirrels. They don't 

 fly, but they skim, like flying-fish. Then 

 the grasshoppers and hoptoads. They 

 can walk, to be sure, but they mostly go 

 by jumping. I can't think of any more. 



O yes, I forgot the little spider that 

 sails through the air on its web, balloon 

 fashion." 



"Now, let us count," said Uncle Jarvis. 

 "We have animals that walk and run, 

 birds, fishes, snakes, snails, earth-worms, 

 measuring-worms, flying-squirrels, grass- 

 hoppers and gossamer-spiders. That 

 makes ten ways. Can't we find more?" 



"How about the nautilus?" asked a big 

 sister. 



"The chambered nautilus? Well, Dr. 

 Holmes admits that 'poets feign' its sail- 

 ing habits. I guess we'll have to give 

 that up for a sailor's yarn. But there 

 are at least four other ways of moving 

 about. We shall have to go to the sea- 

 shore for them." 



"O, I know !" shouted two or three at 

 once. "Jelly fish." 



"Yes ; who knows how they go up and 

 down ?" 



"When they are down," said several 

 promptly, "they collect air to float them, 

 and when they want to sink they dis- 

 charge it." 



"That's right, and there are many 

 water-creatures that do the same. Per- 



138 



