"A 'Cornu batrachian'!" exclaimed Bob. "For the love of tripe, what's
that?"

"California!" murmured Jerry. "I guess the fates want to pile it up on
us."

"Say, is that 'Cornu batrachian' anything like a mountain lion?" asked
Bob.

"Wait," counseled Ned. "He explains. 'The Cornu batrachian,' he says,
'is what is commonly called a horned toad. I must get several fine
specimens, and I thought you boys might be making another trip, and
could go with me. I would be very glad of your company. Please let me
hear from you. My regards to Mrs. Slade.'"

"Well, wouldn't that tickle your teeth!" exclaimed Bob, more forcibly
than elegantly. "And we can't go!" he added with a groan.

"Think of the fun we'll miss by not being with Professor Snodgrass,"
went on Ned.

"And with the Seabury family," chimed in Jerry.

"It's tough!" exclaimed Ned. "And school opens Monday!"

At that moment there was a whistle out in the street and a ring at the
door bell.

"The postman again," said Ned. "I wonder what he wants?"