468 Queries and Answers. 
enough to prove, that, in the conduct of this work, the author has shown 
neither the information nor the industry which might justify him in be- 
coming an interpreter of the labours of others, or the framer of a system 
of his own.” (Phil. Mag., April, 1830, p. 313.) 
The Description of the Double Shadows noticed by me, and inserted in 
your Magazine (Vol. II. p. 108.), having been misunderstood by your cor- 
respondent W., I transmit to you the subjoined drawing ( jig. 116.), and 
116 
Pr Te 
beg to state that, in no one instance, have there been any pools of water in 
the street that could reflect the sun’s image when the double shadows have 
been observed. The carriage way in this town is a macadamised road, 
kept in the best order possible. The arguments of W. would have been 
perfectly correct, had there been any collection of water in the road, and 
had the appearance of the shadows been such as represented in his diagram. 
In the present case, I think some other cause must be assigned. I am, 
Sir, &c. — Muphatamet. Wycombe, Jan. 16. 1830. 
Errata. — In p. 244. line 30. for “ fig. 57.” read “ fig. 58.’ In p. 247. 
line 25. for “ Papilio crategata” read “ Papilio crate‘gi.’ In p. 372. 
line 19. after “ Quadrumanous” insert the words “ and Bimanous.” 
Art. IX. Queries and Answers. 
A MonTuLy Guide for Young Naturalists. — Sir, Will you be so good as 
to inform me if there is a work in circulation, of portable size, and mode- 
rate price, which directs the naturalist in his monthly researches, and may 
be referred to as a guide for every season? Such a volume would be of 
incalculable service to the young beginner, who often finds himself at a loss 
