[89] FISHERIES OF THE UNITED STATES. 733 



Collins's patent fog-alarm— Continued. 



in summer and snow in winter causes the loss of many fisher- 

 men, who go astray because they are unable to hear the horns 

 which are ordinarily employed. The advantages of this fog- 

 alarm are that it can be heard farther than any horn now in 

 use on sailing vessels (this having been proved by actual test 

 at sea) j that the material of which it is made and the sim- 

 plicity of its construction renders it less liable to get out of 

 repair than other patent horns ; that it may be at all times 

 operated with comparatively slight physical exertion, and with- 

 out any of the exhaustion that results from blowing a mouth- 

 horn; and, finally, that it is adapted for use on all kinds and 

 classes of vessels. Dimensions: Diameter of base 2 feet, 

 thickness 4 inches; diameter of wooden top 19 inches, thick- 

 ness, 1£ inches; diameter of bellows (56,955) 15 inches, height 

 20 inches ; height of brass cone, 6£ inches ; diameter of cpne 

 (at base), 9 inches; thickness of brass rods, five-eighths inches; 

 length of lever 4 feet. 



Brass fog-horn. 



Bell-mouth; fitted; large brass reed at small end. Length, 3£ feet; 

 diameter of mouth, 6 inches. Gloucester, Mass., 1883. 56,956. 

 Capt. J. W. Collins. Used on bellows No. 56,955. 



NlCKEL-PLATED FOG-HORN. 



Tin, nickel-plated ; bell-mouth ; fitted with large brass reed. Length 

 (exclusive of reed), 4 feet ; diameter of mouth, 8 inches. Glou- 

 cester, Mass., 1883. 56,957. Capt. J. W. Collins. Used on 

 bellows No. 56,955, and constitutes a portion of Collins's fog- 

 alarm. 



Tin fog-horns. 



Three horns, tin ; ordinary mouth-horns, adapted for use on bellows 

 No. 56,955. Length of each, 3 feet 2 inches ; diameter of mouth, 

 5£ inches. Gloucester, Mass., 1883. 56,958. Capt. J. W. Col- 

 lins. 



Fog-horn reeds, etc. 



One large brass reed 3£ inches long, If inches wide ; 2 small reeds 

 and mouth-pieces for small fog-horns. Gloucester, Mass., 1883. 

 56,959. Capt. J. W. Collins. To be used to replace other reeds 

 which may be lost or injured. 



The Anderson fog-horn. 



Tin ; tubular ; blown by hand. U.S. Fish Commission. 25,281. 



